hey i have the same problem ! im @ work so dunno my precise hardware.. MB : Asus maximus formula proc : Intel E6750 @ 3GHz Mem : 2x 1GB and 2x 2Gb HD : WD velociraptor 150GB 10.000rpm Soundcard : Came with Motherboard, small soundcard on pci 1x tried it with 2 different beta's, didnt try yet...