I use 2 x 320 hd for vista 64 and a 160 gig hd for windows 7 everything goes smoothly till it comes up completing instal and the dots move but the bar at bottom doesnt. It sees my raid drivers and goes fine in that part and my specs are good enough. LP DK790fx-M2RS SilverstoneStrider 1000watt AMD Phenom II X4 940 Deneb 3.0GHz @3.8 so far 2x2gb OCZ Reaper HPC (PC2 8500) Seagate 320 gig sata hd x 2 Raid 0 vista home prem.64 bit+ windows7 1 x hd4870 512 Audigy 2 ZS plat. sound 5.1 creative 550watt speakers 1 x lite on super multi 1 x sony dvd-rw lightscribe 1 x liteon sata dvd writer 3.5 floppy 52 in one memory card reader 230mm front,4x 120 mm side,140mm rear,230 top Zalman 9700 cpu cooler CM HAF-932 case No usb devices plugged in at all so any suggestions? and thanks in advance for any help.