Dual boot into XP 32Bit SP3 if you have a cd lying around. Virtualization svcks for games. Create 2 new partions from 100gigs one 25gigs for XP and one 75gigs for games. and copy fallout 3 directly onto external and paste in 75gig partion. It really easy to do in windows 7 via disk manager. Windows XP 32bit is unaffected by this problem.
THis needs to be repeated and others confirm .
If true that sure is a bad indicator of platform testing given
the number of Windows 7 6 bit systems being sold today versus XP systems. (exactly).
Further it sounds like they still have issues with CPUS' with mroe than 2 cores. Fallout 3 1.70 did too and there was some ini hack people used
to get around that issue.
Fix the problem Bethesda.
/signed Windows 7 64 bit user and Nvidia 285GTX.
Intel core 2 duo. 197.xx series Nvidia drivers.
From what I'm reading people with more advanced (core wise) systems than 2 cores seem to have more problems than 2 core with this game.
I'm having a fPS drop too that is worse than irritating but may not be as bad as others have reported.
By the way people post system specs when you do bother to post a complaint so a common thread might emerge. It helps narrow down issues.
Failing to post system details does NOBODY any good.