--- tilesGen.pl.old	2008-05-05 04:55:21.593750000 +0200
+++ tilesGen.pl	2008-05-05 04:51:02.453125000 +0200
@@ -1337,7 +1337,7 @@
         $Left,$Top,$Width,$Height,
         $TempFile,
         $Config{WorkingDirectory},
-        "output-$PID-z$Zoom.svg",
+        "output-$parent_pid-z$Zoom.svg",
         $stdOut);
     }
     else
