I was just wondering if I can upgrade the video card on my laptop and if so where I can find one that is in the price range of $100-200. My laptop is a brand new hp pavillion amd turion 64 x2 tl-58. 1.9 ghz with 2gb of ram. I just bought guitar hero 3 for the computer thinkin it would work because I just got a brand new laptop but it lags too much to play. 32- bit operating system with a nvidia geforce go 7150 video card. My current system is windows vista home premium. Would loading windows xp on the system instead of vista help in any way because I know there have been some problems with vistas speed.