diff --git a/doc/userguide/tde-for-admins.docbook b/doc/userguide/tde-for-admins.docbook
index 197dab390..aca6bb7d4 100644
--- a/doc/userguide/tde-for-admins.docbook
+++ b/doc/userguide/tde-for-admins.docbook
@@ -184,7 +184,7 @@ TDEDIRS='/opt/kde_staff:/opt/trinity'
 class="directory">/opt/kde_staff</filename> contained additional settings
 and applications for staff members. <quote>User Profiles</quote> allow you
 to add this directory only for certain users and not for others.  Add the
-following to <filename>/etc/kderc</filename>:</para>
+following to <filename>/etc/tderc</filename>:</para>
 
 <programlisting>
 [Directories-staff]
@@ -195,11 +195,11 @@ prefixes=/opt/kde_staff
 <filename class="directory">/opt/kde_staff</filename> directory
 tree. (Note that &SuSE; &Linux; uses
 <filename>/etc/kde3rc</filename> instead of
-<filename>/etc/kderc</filename>. Now that we have a named profile it
+<filename>/etc/tderc</filename>. Now that we have a named profile it
 can be assigned to users.</para>
 
 <para>To map profiles to users a mapping file needs to be specified in
-<filename>/etc/kderc</filename>:</para>
+<filename>/etc/tderc</filename>:</para>
 
 <programlisting>
 [Directories]
@@ -2381,7 +2381,7 @@ Installing Software
 = AutoYaST
 = KickStart
 Maintaining Settings
-= /etc/kderc, other settings
+= /etc/tderc, other settings
 = Use rsync to copy files around
 = Shared filesystem such as NFS
 o store profiles themselves on NFS
diff --git a/kcontrol/colors/colorscm.cpp b/kcontrol/colors/colorscm.cpp
index 45e3932da..b1cc2616a 100644
--- a/kcontrol/colors/colorscm.cpp
+++ b/kcontrol/colors/colorscm.cpp
@@ -372,7 +372,7 @@ void KColorScheme::save()
 
     // KDE-1.x support
     KSimpleConfig *config =
-    new KSimpleConfig( TQDir::homeDirPath() + "/.kderc" );
+    new KSimpleConfig( TQDir::homeDirPath() + "/.tderc" );
     config->setGroup( "General" );
     config->writeEntry("background", cs->back );
     config->writeEntry("selectBackground", cs->select );
diff --git a/kcontrol/fonts/fonts.cpp b/kcontrol/fonts/fonts.cpp
index 2489b80c6..c5b4c3353 100644
--- a/kcontrol/fonts/fonts.cpp
+++ b/kcontrol/fonts/fonts.cpp
@@ -733,7 +733,7 @@ void TDEFonts::save()
   }
 
   // KDE-1.x support
-  KSimpleConfig* config = new KSimpleConfig( TQDir::homeDirPath() + "/.kderc" );
+  KSimpleConfig* config = new KSimpleConfig( TQDir::homeDirPath() + "/.tderc" );
   config->setGroup( "General" );
   for ( FontUseItem* i = fontUseList.first(); i; i = fontUseList.next() ) {
       if("font"==i->rcKey())
diff --git a/kcontrol/keys/README b/kcontrol/keys/README
index 63964a1fe..bbdc72537 100644
--- a/kcontrol/keys/README
+++ b/kcontrol/keys/README
@@ -2,6 +2,6 @@ CHANGES V0.2
 - Global keys stored by default in ~/.trinity/share/config/kdeglobals 
   [Global Keys] group
 - KKeyDialog checks new key choices against exising bindings for the widget
-and against entries in .kderc [Global Keys]
+and against entries in .tderc [Global Keys]
 - kcmkeys now has two standard kcontrol pages - one for standard desktop
 accelerators and one for global keybindings. 
diff --git a/kcontrol/kthememanager/ktheme.cpp b/kcontrol/kthememanager/ktheme.cpp
index 974ad88b6..d5a593727 100644
--- a/kcontrol/kthememanager/ktheme.cpp
+++ b/kcontrol/kthememanager/ktheme.cpp
@@ -655,7 +655,7 @@ void KTheme::apply()
     if ( !fontsElem.isNull() )
     {
         TDEConfig * fontsConf = TDEGlobal::config();
-        TDEConfig * kde1xConf = new KSimpleConfig( TQDir::homeDirPath() + "/.kderc" );
+        TDEConfig * kde1xConf = new KSimpleConfig( TQDir::homeDirPath() + "/.tderc" );
         kde1xConf->setGroup( "General" );
 
         TQDomNodeList fontList = fontsElem.childNodes();
diff --git a/kdesktop/minicli_ui.ui b/kdesktop/minicli_ui.ui
index 4544ce093..daf5542e0 100644
--- a/kdesktop/minicli_ui.ui
+++ b/kdesktop/minicli_ui.ui
@@ -509,7 +509,7 @@
                 <cstring>cbCommand</cstring>
             </property>
             <property name="whatsThis" stdset="0">
-                <string>Enter the command you wish to execute or the address of the resource you want to open. This can be a remote URL like "www.kde.org" or a local one like "~/.kderc".</string>
+                <string>Enter the command you wish to execute or the address of the resource you want to open. This can be a remote URL like "www.kde.org" or a local one like "~/.tderc".</string>
             </property>
         </widget>
         <widget class="TQLabel" row="0" column="0">
@@ -550,7 +550,7 @@
                 </size>
             </property>
             <property name="whatsThis" stdset="0">
-                <string>Enter the command you wish to execute or the address of the resource you want to open. This can be a remote URL like "www.kde.org" or a local one like "~/.kderc".</string>
+                <string>Enter the command you wish to execute or the address of the resource you want to open. This can be a remote URL like "www.kde.org" or a local one like "~/.tderc".</string>
             </property>
         </widget>
         <widget class="TQLabel" row="0" column="1">
diff --git a/kpersonalizer/kstylepage.cpp b/kpersonalizer/kstylepage.cpp
index 296131ee0..974ac0c9d 100644
--- a/kpersonalizer/kstylepage.cpp
+++ b/kpersonalizer/kstylepage.cpp
@@ -188,7 +188,7 @@ void TDEStylePage::saveColors(bool curSettings){
 	////////////////////////////////////////////////////
 	// KDE-1.x support
 	KSimpleConfig *tdeconfig =
-	new KSimpleConfig( TQDir::homeDirPath() + "/.kderc" );
+	new KSimpleConfig( TQDir::homeDirPath() + "/.tderc" );
 	tdeconfig->setGroup( "General" );
 	tdeconfig->writeEntry("background", toSave->background );
 	tdeconfig->writeEntry("selectBackground", toSave->selectBackground );
diff --git a/r14-xdg-update b/r14-xdg-update
index 103d5dec3..627262ac4 100644
--- a/r14-xdg-update
+++ b/r14-xdg-update
@@ -624,6 +624,16 @@ if [ ! -f $PROFILE_DIR/share/config/tderadiorc ] && [ -f $PROFILE_DIR/share/conf
   mv $PROFILE_DIR/share/config/kradiorc $PROFILE_DIR/share/config/tderadiorc 2>/dev/null
   mv $PROFILE_DIR/share/apps/kradio $PROFILE_DIR/share/apps/tderadio 2>/dev/null
 fi
+if [ ! -f $HOME/.tderc ] && [ -f $HOME/.kderc ]; then
+  # Do not blindly move $HOME/.kderc because that file might be from KDE4.
+  # The first test is from a Trinity .kderc and the second test is from a KDE4 .kderc.
+  if [ "`grep selectBackground $HOME/.kderc`" != "" ] && [ "`grep smallestReadableFont $HOME/.kderc`" = "" ]; then
+    # Both tests pass. Probably a Trinity .kderc.
+    Message_Prefix
+    echo "  .kderc->.tderc"
+    mv $HOME/.kderc $HOME/.tderc 2>/dev/null
+  fi
+fi
 
 # Disable some features new to R14, otherwise users will see an unfamiliar desktop.
 if [[ $($TDEDIR/bin/kreadconfig --file kickerrc --group "General" --key "ShowDeepButtons" --default false) == "false" ]]; then
diff --git a/tdm/TODO b/tdm/TODO
index a36dd8edf..208863d9b 100644
--- a/tdm/TODO
+++ b/tdm/TODO
@@ -45,7 +45,7 @@ save these options to .dmrc?
   otherwise the GUI would become insanely complex.
 
 - make config position independent
-- parse /etc/kderc?
+- parse /etc/tderc?
 - merge multiple tdmrcs in the style of tdeconfig. how to set section priorities?
 - gentdmconf: treat backgroundrc as an ini file, not as a text blob
 - add proper quoting and dequoting to gentdmconf ini parser & writer