[SpiritWarrior]

Game compatibility is one of the downfalls of the 64-bit architecture on Win 7 atm. It's the reason I am using the 32-bit for now. Some games will run fine (you do have Win XP mode also, remember) but others will share problems.

I am noticing it's the newer games causing problems alot more so than the old ones - but these are just my observations from "word of mouth" and feedback I am seeing while working on other systems. If you are a serious gamer, I would avoid it for now and downgrade to 32 if you can. If not, prepare for possible issues from time to time but nothing overly devastating.

Bear in mind, Win7 32-bit had it's fair share of compatibility problems on debut, so it's only normal that it's less-common 64-bit counterpart takes a bit longer to adjust and iron out the issues. Off the top of my head, games like Bioshock 2 and ME2 (two titles released recently) have known issues with the 64-bit version. I am playing Bioshock 2 atm perfectly, yet one of my friends running 64-bit keeps getting crashes related to the OS and all he can do is wait until they fix it.