I have experienced strange graphics problems on my Vista machine as well, I have been testing your script on WinXP.
Do you have a Win2k or WinXP machine you could test it on?
Surely you don’t have any Vista machines in your production environment, with Vista not even being released, let alone Microsoft’s track record for bugs in the first 2 years of release.
I would not even consider using it for testing a login script.
On my WinXP machine the graphics are fine and runs as expected. I believe what you are seeing has to do with Vistas graphics problems.
