Gpedit.msc

I have a logoff script created with gpedit.msc
It runs a .bat file. that sync's the files on my desktop with those on my WHS.

However it only works if I first open gpedit.msc or console.msc
If I log onto the PC without opening gpedit.msc and log off again the script fails to run!

I wonder if anyone has any ideas?