Hi, this is my very first post, and would like to know if you guys can pls help me with a solution to my problem, which is now really starting to annoy me, well i have recently reinstalled my desktop with Windows 7 ultimate, cause i was hoping that would solve the problem. but it didnt change anything, i have a custom built desktop, it has 3Gb RAm, with a intel core 2 Quad CPU Q8300 @ 2.50GHz, got a ATI Radeon HD 5700, my operating system in Windows 7 Ultimate. i have dusted off all harware, and cleaned all my fans but the problem continues, so if u have any advice or solutions to this problem it would be much apreciated!!