Whats your PSU Brand, that really sounds like a PSU prob.

That don't sound like a PSU problem, unless there's errors and crashes.

Bad performance isn't a typical of a power supply problem. It's almost always caused by a software problem or the game not having enough RAM. If you have less than 512 MB, it's time to upgrade to at least 512 MB!

Edited February 1, 200620 yr by RJARRRPCGP

well if you have an intel dual core then i have no clue what can fix the problem, but im sure there is a fix. the amd dual core fixes work and my dual core opteron is playing games just fun. i was really p***ed when i got need for speed most wanted and it would "lag". im thinking, i wasted 2000$ on a computer for it to lag! but then i found the fix and now im happy.