There's been alot said of Vista problems. Most have been fixed though. Alot of people were talking about compatibility issues before it came out as well...
This "ghosting" effect is very odd, especially since it's in GS apps as well (MED SED WED). Obviously a bug...
There should be no reason why this runs under 32-bit and not 64, other than bad 64-bit drivers.
Vista x64 has been a huge nightmare for driver issues (I think it is because they don't update the drivers for 64-bit Vista as quickly as they do for 32).
You have to check with Microsoft and Nvidia. I've had very little luck finding information on 64-bit drivers. I had to remove my copy of 64-bit Vista since I had too many issues (none of them with 3DGS itself).
