diff --git a/addons/project_issue/board_project_issue_view.xml b/addons/project_issue/board_project_issue_view.xml
index 3b6a6bcd0a3..cfe285134a7 100644
--- a/addons/project_issue/board_project_issue_view.xml
+++ b/addons/project_issue/board_project_issue_view.xml
@@ -123,7 +123,7 @@
             <field name="res_model">project.issue</field>
             <field name="view_type">form</field>
             <field name="view_mode">tree,form</field>
-            <field name="domain">[('state','not in',('cancel','done')),'|',('assigned_to','=',uid),('user_id','=',uid)]</field>
+            <field name="domain">[('state','not in',('cancel','done')),('user_id','=',uid)]</field>
            <field name="view_id" ref="project_issue_board_tree_view"/>
         </record>
          <record id="view_my_open_project_issue_graph" model="ir.ui.view">
@@ -142,7 +142,7 @@
             <field name="res_model">project.issue.report</field>
             <field name="view_type">form</field>
             <field name="view_mode">graph,tree,form,</field>
-            <field name="domain">[('state','=','open'),'|',('assigned_to','=',uid),('user_id','=',uid)]</field>
+            <field name="domain">[('state','=','open'),('user_id','=',uid)]</field>
            <field name="view_id" ref="view_my_open_project_issue_graph"/>
         </record>
        <record id="board_my_project_issue_form" model="ir.ui.view">
diff --git a/addons/project_issue/project_issue.py b/addons/project_issue/project_issue.py
index 61a45f01753..3ad3dbfc814 100644
--- a/addons/project_issue/project_issue.py
+++ b/addons/project_issue/project_issue.py
@@ -56,7 +56,7 @@ class project_issue(crm.crm_case, osv.osv):
         """
 
         res = super(project_issue, self).case_open(cr, uid, ids, *args)
-        self.write(cr, uid, ids, {'date_open': time.strftime('%Y-%m-%d %H:%M:%S'), 'assigned_to' : uid})
+        self.write(cr, uid, ids, {'date_open': time.strftime('%Y-%m-%d %H:%M:%S'), 'user_id' : uid})
         for (id, name) in self.name_get(cr, uid, ids):
             message = _("Issue '%s' has been opened.") % name
             self.log(cr, uid, id, message)
@@ -189,7 +189,6 @@ class project_issue(crm.crm_case, osv.osv):
         'section_id': fields.many2one('crm.case.section', 'Sales Team', \
                         select=True, help='Sales team to which Case belongs to.\
                              Define Responsible user and Email account for mail gateway.'),
-        'user_id': fields.related('project_id', 'user_id', type='many2one', relation='res.users', store=True, select=1, string='Responsible'),
         'partner_id': fields.many2one('res.partner', 'Partner', select=1),
         'partner_address_id': fields.many2one('res.partner.address', 'Partner Contact', \
                                  domain="[('partner_id','=',partner_id)]"),
@@ -218,7 +217,7 @@ class project_issue(crm.crm_case, osv.osv):
                                 multi='compute_day', type="float", store=True),
         'day_close': fields.function(_compute_day, string='Days to Close', \
                                 multi='compute_day', type="float", store=True),
-        'assigned_to': fields.many2one('res.users', 'Assigned to', required=False, select=1),
+        'user_id': fields.many2one('res.users', 'Assigned to', required=False, select=1),
         'working_hours_open': fields.function(_compute_day, string='Working Hours to Open the Issue', \
                                 multi='compute_day', type="float", store=True),
         'working_hours_close': fields.function(_compute_day, string='Working Hours to Close the Issue', \
@@ -243,19 +242,11 @@ class project_issue(crm.crm_case, osv.osv):
         return False
 
     def on_change_project(self, cr, uid, ids, project_id, context=None):
-        result = {}
-
-        if project_id:
-            project = self.pool.get('project.project').browse(cr, uid, project_id, context=context)
-            if project.user_id:
-                result['value'] = {'user_id' : project.user_id.id}
-
-        return result
+        return {}
 
 
     _defaults = {
         'active': 1,
-        #'user_id': crm.crm_case._get_default_user,
         'partner_id': crm.crm_case._get_default_partner,
         'partner_address_id': crm.crm_case._get_default_partner_address,
         'email_from': crm.crm_case._get_default_email,
@@ -265,7 +256,6 @@ class project_issue(crm.crm_case, osv.osv):
         'priority': crm.AVAILABLE_PRIORITIES[2][0],
         'project_id':_get_project,
         'categ_id' : lambda *a: False,
-        #'assigned_to' : lambda obj, cr, uid, context: uid,
     }
 
     def convert_issue_task(self, cr, uid, ids, context=None):
@@ -294,7 +284,7 @@ class project_issue(crm.crm_case, osv.osv):
                 'date': bug.date,
                 'project_id': bug.project_id.id,
                 'priority': bug.priority,
-                'user_id': bug.assigned_to.id,
+                'user_id': bug.user_id.id,
                 'planned_hours': 0.0,
             })
 
@@ -362,7 +352,7 @@ class project_issue(crm.crm_case, osv.osv):
         if not task_id:
             return {'value':{}}
         task = self.pool.get('project.task').browse(cr, uid, task_id, context=context)
-        return {'value':{'assigned_to': task.user_id.id,}}
+        return {'value':{'user_id': task.user_id.id,}}
 
     def case_escalate(self, cr, uid, ids, *args):
         """Escalates case to top level
diff --git a/addons/project_issue/project_issue_view.xml b/addons/project_issue/project_issue_view.xml
index 1154579960e..52723d3fb01 100644
--- a/addons/project_issue/project_issue_view.xml
+++ b/addons/project_issue/project_issue_view.xml
@@ -55,8 +55,7 @@
                         <field name="name"/>
                         <field name="project_id" required="True" on_change="on_change_project(project_id)"/>
                         <field name="categ_id" widget="selection" domain="[('object_id.model', '=', 'project.issue')]"/>
-                        <field name="user_id" invisible="1" />
-                        <field name="assigned_to"/>
+                        <field name="user_id"/>                        
                         <field name="version_id" colspan="2" widget="selection"/>
                         <group colspan="2" col="4">
                             <field name="type_id" string="Resolution" />
@@ -191,7 +190,7 @@
                     <button name="prev_type" string="Previous" type="object" icon="gtk-go-back" help="Change to Previous Stage"/>
                     <button name="next_type" string="Next" type="object" icon="gtk-go-forward" help="Change to Next Stage"/>
                     <field name="version_id" widget="selection"/>
-                    <field name="assigned_to"/>
+                    <field name="user_id"/>
                     <field name="progress" widget="progressbar" attrs="{'invisible':[('task_id','=',False)]}"/>
                     <field name="state"/>
                     <button name="case_cancel" string="Cancel" states="draft,open,pending" type="object" icon="gtk-cancel"/>
@@ -219,8 +218,8 @@
                         <filter string="Pending" domain="[('state','=','pending')]"  help="Pending Issues" icon="terp-gtk-media-pause"/>
                         <separator orientation="vertical"/>
                         <field name="name" string="Issue / Partner" filter_domain="['|', '|', ('partner_id','ilike',self), ('email_from','ilike',self), ('name','ilike',self)]"/>
-                        <field name="assigned_to">
-                            <filter domain="[('assigned_to','=',False)]"  help="Unassigned Issues" icon="terp-personal-" separator="1"/>
+                        <field name="user_id">
+                            <filter domain="[('user_id','=',False)]"  help="Unassigned Issues" icon="terp-personal-" separator="1"/>
                         </field>
                         <field name="project_id"/>
                         <field name="id"/>
@@ -228,7 +227,7 @@
                     <newline/>
                     <group expand="0" string="Group By..."  groups="base.group_extended">
                         <filter string="Responsible" icon="terp-personal"
-                            domain="[]" context="{'group_by':'assigned_to'}" />
+                            domain="[]" context="{'group_by':'user_id'}" />
                         <filter string="Partner" icon="terp-partner" domain="[]"
                             context="{'group_by':'partner_id'}" />
                         <separator orientation="vertical"/>
@@ -259,7 +258,7 @@
             <field name="type">calendar</field>
             <field name="priority" eval="2"/>
             <field name="arch" type="xml">
-                <calendar string="Issues" date_start="date" color="assigned_to" date_delay="duration">
+                <calendar string="Issues" date_start="date" color="user_id" date_delay="duration">
                     <field name="name"/>
                     <field name="partner_id"/>
                 </calendar>
@@ -284,7 +283,7 @@
                     <button name="prev_type" string="Previous" type="object" icon="gtk-go-back" help="Change to Previous Stage"/>
                     <button name="next_type" string="Next" type="object" icon="gtk-go-forward" help="Change to Next Stage"/>
                     <field name="version_id"/>
-                    <field name="assigned_to"/>
+                    <field name="user_id"/>
                     <field name="state"/>
                     <button name="case_cancel" string="Cancel" states="draft,open,pending" type="object" icon="gtk-cancel"/>
                     <button name="case_close" string="Done" states="open,draft,pending" type="object" icon="gtk-jump-to"/>
@@ -307,7 +306,7 @@
                     <separator orientation="vertical"/>
                     <group>
                         <field name="name" select='1' string="Feature description"/>
-                        <field name="assigned_to" select="1"/>
+                        <field name="user_id" select="1"/>
                         <field name="state" select="1">
                             <filter icon="terp-check" domain="[('state','in',('open','draft'))]" help="Current Features" name="current_feature"/>
                             <filter icon="terp-camera_test" domain="[('state','=','open')]" help="Open Features"/>
diff --git a/addons/project_issue/report/project_issue_report.py b/addons/project_issue/report/project_issue_report.py
index 5eae252f446..0614d0b4ef8 100644
--- a/addons/project_issue/report/project_issue_report.py
+++ b/addons/project_issue/report/project_issue_report.py
@@ -37,7 +37,6 @@ class project_issue_report(osv.osv):
 
     _columns = {
         'name': fields.char('Year', size=64, required=False, readonly=True),
-        'user_id':fields.many2one('res.users', 'Responsible', readonly=True),
         'section_id':fields.many2one('crm.case.section', 'Sale Team', readonly=True),
         'state': fields.selection(AVAILABLE_STATES, 'State', size=16, readonly=True),
         'month':fields.selection([('01', 'January'), ('02', 'February'), \
@@ -64,7 +63,7 @@ class project_issue_report(osv.osv):
         'priority': fields.selection(crm.AVAILABLE_PRIORITIES, 'Priority'),
         'project_id':fields.many2one('project.project', 'Project',readonly=True),
         'version_id': fields.many2one('project.issue.version', 'Version'),
-        'assigned_to' : fields.many2one('res.users', 'Assigned to',readonly=True),
+        'user_id' : fields.many2one('res.users', 'Assigned to',readonly=True),
         'partner_id': fields.many2one('res.partner','Partner',domain="[('object_id.model', '=', 'project.issue')]"),
         'channel_id': fields.many2one('crm.case.channel', 'Channel',readonly=True),
         'task_id': fields.many2one('project.task', 'Task',domain="[('object_id.model', '=', 'project.issue')]" ),
@@ -95,7 +94,6 @@ class project_issue_report(osv.osv):
                     c.project_id as project_id,
                     c.version_id as version_id,
                     1 as nbr,
-                    c.assigned_to,
                     c.partner_id,
                     c.channel_id,
                     c.task_id,
diff --git a/addons/project_issue/report/project_issue_report_view.xml b/addons/project_issue/report/project_issue_report_view.xml
index 4808ff29f81..07e1c507902 100644
--- a/addons/project_issue/report/project_issue_report_view.xml
+++ b/addons/project_issue/report/project_issue_report_view.xml
@@ -21,7 +21,6 @@
                     <field name="channel_id" invisible="1"/>
                     <field name="partner_id" invisible="1"/>
                     <field name="task_id" invisible="1"/>
-                    <field name="assigned_to" invisible="1"/>
                     <field name="date_closed" invisible="1"/>
                     <field name="state" invisible="1"/>
                     <field name="day" invisible="1"/>
@@ -89,7 +88,7 @@
 
                            </field>
                               <field name="project_id"/>
-                          <field name="user_id"  select="1" widget="selection"/>
+                          <field name="user_id"  select="1" widget="selection" filter_domain="[('user_id','ilike',self)]"/>
                    </group>
                    <newline/>
                    <group expand="0" string="Extended Filters..." colspan="10" col="12" groups="base.group_extended">
@@ -109,11 +108,9 @@
                        <field name="date_closed" string="Date Closed"/>
                    </group>
                    <newline/>
-                   <group  expand="1" string="Group By..." colspan="4" col="8">
-                           <filter name="User" string="Responsible" icon="terp-personal"
-                        domain="[]" context="{'group_by':'user_id'}" />
+                   <group  expand="1" string="Group By..." colspan="4" col="8">                        
                         <filter string="Assigned to" name="Responsible" icon="terp-personal"
-                        domain="[]" context="{'group_by':'assigned_to'}" />
+                        domain="[]" context="{'group_by':'user_id'}" />
                         <filter string="Partner" icon="terp-partner" context="{'group_by':'partner_id'}" />
                         <separator orientation="vertical" />
                         <filter string="Sale Team" icon="terp-personal+"
diff --git a/addons/project_issue_sheet/project_issue_sheet_view.xml b/addons/project_issue_sheet/project_issue_sheet_view.xml
index 058fd67a946..1e9b139aed1 100644
--- a/addons/project_issue_sheet/project_issue_sheet_view.xml
+++ b/addons/project_issue_sheet/project_issue_sheet_view.xml
@@ -18,7 +18,7 @@
                 </xpath>
                 <notebook colspan="4">
                     <page string="Worklogs">
-                        <field name="timesheet_ids" colspan="4" nolabel="1" context="{'default_user_id' : assigned_to, 'default_account_id' : analytic_account_id}">
+                        <field name="timesheet_ids" colspan="4" nolabel="1" context="{'default_user_id' : user_id, 'default_account_id' : analytic_account_id}">
                             <tree editable="top" string="Timesheet">
                                 <field name="name"/>
                                 <field name="unit_amount" on_change="on_change_unit_amount(product_id, unit_amount, False, product_uom_id,journal_id)" widget="float_time"/>