diff -Naur old/zenmap/install_scripts/unix/su-to-zenmap.sh new/zenmap/install_scripts/unix/su-to-zenmap.sh
--- old/zenmap/install_scripts/unix/su-to-zenmap.sh	2012-08-17 18:34:05.863827354 +1000
+++ new/zenmap/install_scripts/unix/su-to-zenmap.sh	2012-08-17 18:35:53.872952226 +1000
@@ -40,8 +40,8 @@
     fi
     case $SU_TO_ROOT_X in
       gksu) gksu -u "$PRIV" "$COMMAND";;
-      kdesu) kdesu -u "$PRIV" "$COMMAND";;
-      kde4su) /usr/lib/kde4/libexec/kdesu -u "$PRIV" "$COMMAND";;
+      kdesu) kdesu -u "$PRIV" -c "$COMMAND";;
+      kde4su) /usr/lib/kde4/libexec/kdesu -u "$PRIV" -c "$COMMAND";;
       ktsuss) ktsuss -u "$PRIV" "$COMMAND";;
   # As a last resort, open a new xterm use sudo/su
       sdterm) xterm -e "sudo -u $PRIV $COMMAND";;