mrplow99 :
Cool, i just remember people saying that 64 bit has compatibility problems with some games/apps is this just lies?
The older the game is the more chance there might be some issue, with either Vista itself or, and this is less likely, with 64 bit. I'm no expert at determining when or why, the situation seems a little murky to me as to why exactly. By and large 32 bit programs run fine under 64 because the processor actually has a 32 bit alternate mode that it runs 32 bit code inside of. Many older games that don't run in vista will run if you run them 1. as administrator and/or 2. in XP compatibility mode - both options are easily selected by right clicking the exe file and going into 'properties'.
The bottom line is that many of us heavy gamers are using 64 and loving it and everything seem to just work, new games and old - but there may be exceptions, to be sure about an older game you will likely need to research it individually.
Some software will need a 64 bit version to run, not many, but a few, probably because they have a low level, driver type component to them. CD emulators, some security software, are a few examples. So far I found a 64 bit version easily available for all I wanted to run.
That so many enthusiasts and gamers are using 64 ought to tell you that by and large the water is nice.