diff -Nru tgif-4.2.5/debian/changelog tgif-4.2.5/debian/changelog
--- tgif-4.2.5/debian/changelog	2012-04-16 07:20:31.000000000 +0000
+++ tgif-4.2.5/debian/changelog	2012-06-16 11:23:37.000000000 +0000
@@ -1,3 +1,11 @@
+tgif (1:4.2.5-1.2) unstable; urgency=low
+
+  * Non-maintainer upload.
+  * debian/preinst: Also support clean installation when package was previously
+    removed but not purged. closes: #666227
+
+ -- Willi Mann <willi@debian.org>  Sat, 16 Jun 2012 13:05:52 +0200
+
 tgif (1:4.2.5-1.1) unstable; urgency=low
 
   * Non-maintainer upload.
diff -Nru tgif-4.2.5/debian/preinst tgif-4.2.5/debian/preinst
--- tgif-4.2.5/debian/preinst	2011-03-01 22:46:59.000000000 +0000
+++ tgif-4.2.5/debian/preinst	2012-06-16 11:13:08.000000000 +0000
@@ -3,24 +3,26 @@
 #DEBHELPER#
 
 case $1 in
-   install|abort-upgrade ) 
+   abort-upgrade ) 
    exit 0
    ;;
-   upgrade )
-   # Remove old config file if upgrading from tgif <= 3.0p13-1
-   rm -rf /etc/X11/tgif
-   # Clean up app-defaults files from previous versions of the postinst
-   # script tgif (< 4.2.2-4).  This should restore the files to their
-   # pristine state unless the user has made additional alterations.
-   for bit in "" "/ja_JP.eucJP" "/ru"; do
-       file=/etc/X11$bit/app-defaults/Tgif
-       # Remove all instances of the 
-       #   Tgif*InitialPaperSize:
-       #   Tgif*GridSystem:
-       # line pairs appended by old versions of postinst.
-       sed '/Tgif\*InitialPaperSize/,+1 d' $file > $file.clean
-       mv $file.clean $file
-   done
+   install|upgrade )
+   if [ ! -z "$2" ]; then
+      # Remove old config file if upgrading from tgif <= 3.0p13-1
+      rm -rf /etc/X11/tgif
+      # Clean up app-defaults files from previous versions of the postinst
+      # script tgif (< 4.2.2-4).  This should restore the files to their
+      # pristine state unless the user has made additional alterations.
+      for bit in "" "/ja_JP.eucJP" "/ru"; do
+          file=/etc/X11$bit/app-defaults/Tgif
+          # Remove all instances of the 
+          #   Tgif*InitialPaperSize:
+          #   Tgif*GridSystem:
+          # line pairs appended by old versions of postinst.
+          sed '/Tgif\*InitialPaperSize/,+1 d' $file > $file.clean
+          mv $file.clean $file
+      done
+   fi
    ;;
    * )
    echo "preinst called with unknown argument \`$1'" >&2