5-10 FPS Issue

[SXR-KryptonitE 0]

It only ran normal at 30-60 fps once, for about 20 mins after I installed fresh gfx drviers and rebooted. No matter what tweaking I put in launch options, setting the .exe itself to run in xp compatibility mode, changing gfx settings, resolution, etc, I'm consistently getting 5-10 fps....

& apparently nobody on the servers has had this problem before so I guess yet again I'm apart of the 1% that has a rare issue. Latest drivers for everything are installed, including directX.

Windows Vista x64

AMD Phenom x4 2.450Ghz

8GBs RAM

GeForce GTX570

Anyone heard of this issue before and KNOW what resolved it?

[SXR-KryptonitE 0]

UPDATE: I've been trying U.S. servers (I live in Florida) throughout the day, and was getting 5-10 fps soon as I get in-game. Each time i've been fully closing out of the game and Steam before trying another server. JUST NOW, I joined a russian server and was getting 25-40fps starting off, which then dropped to 10 fps after about 20 mins.

Looks like a memory leak issue, but a clan m8 of mine plays it at 70+ fps constantly, which mine SHOULD be doing also....Worse comes to worst, I'm gunna point the finger at vista, again, but I'm pretty sure there's plenty of yall that run this fine while running vista 64bit also. *shrug*

Thoughts?