Single Player LAg

I’m experiencing some major single player lag. I never use to until i upgraded my graphics card and changed to windows 7… Shouldn’t it be faster now? Anyways here is specs!

Windows 7
AMD Phenom™ 9550 Quad Core Processor (4cpus), `2.2 GHZ
Memory:3072MB ram
Graphics card: Nvidia Geforce 9500 GT
I am running a Dual Monitor system to, I don’t know if that would have any effect though.

PLEASE HELP FAST!

Have you installed the latest drivers for your card?

[editline]08:40PM[/editline]

32bit: http://us.download.nvidia.com/Windows/196.21/196.21_desktop_win7_winvista_32bit_english_whql.exe
64bit: http://us.download.nvidia.com/Windows/196.21/196.21_desktop_win7_winvista_64bit_english_whql.exe

I have… I will try it again though.

EDIT: Fixed it for about… 5 minutes… now i have no clue to be honest…

Anyone have anything else i can try?