My problem is.. I have an emachines T6520 and I upgraded the graphics card from a Radeon x200 ( stock biult into the motherboard ) to a Radeon X800Pro. The instuctions said before I install my new graphic card I must unintall my original graphic card software. I did this, then I put my new graphic card into the PCIe slot on the motherboard, pluged everything back in and installed the disc it came with. NOW im not sure if the computer even knows that the graphic card is there cause every time I try to play a video game it wont work it says no 3D graphic accelerator, and my internet connection is alot slower when i skroll down its not a smooth scroll anymore the scroll accures in sections much like an older computer would. I dont know what to do next ? My power supply is 300 watts and the reccomended amount is 350 and above could this be my problem ? Or is something just not installed right. Or is a driver missing ???? PLEASE HELP ME !