I have a problem with drivers for my graphics card... I own MSI Radeon HD4850 1GB DDR3 256-bit... I had Windows 7 and recently i downgraded to XP SP3,but since then i cant get my graphics card to work properly... I have tried many drivers,but none of them seem to work... When I go to CanYouRunIt,instead of showing me that i have a Radeon HD4850 it says that i have a AMD Radeon Graphics Processor (0x944A)... And when i start playing a game,it runs fine for a couple of minutes,but then just freezes and i have to restart my PC... Sometimes I also get a buzzing sound from my speakers...It is really annoying and I have no clue what should i do... If you can help me somehow i would really appreciate it...