Hello everyone, I've recently bought and installed a new graphics card (Radeon 6950) and I'm having a problem with it. While playing games the image stutters, specifically when I scroll around (scroll the map in strategies, move the screen with the mouse in FPS games). The FPS doesn't drop, settings (low/ultra) do not affect this. Everything runs smoothly when I don't scroll the screen. Also when I start the PC, the fans (dunno which) spin rapidly for a second, making a lot of noise (this doesn't happen without the card installed). Components' temperatures are all low. PC specs are: ASUS P8Z68-V MOBO Intel Core i5 2500k CPU G.Skill DDR3-1600 8192MB RipjawsX (F3-12800CL9D-8GBXL) RAM (two 4gb modules) Asus Direct CUII Radeon 6950 GPU WD SATA6 7200 RPM 32mb cache (WD7500AALX) HDD XFX XXX 650w PSU Fresh Windows 7 64-bit installation Any help is much appreciated!