I'm currently trying to dual boot Win XP 32bit, and Win7 64bit. I have separate partitions on one HDD for each of the OS and I currently have XP pro installed without any problems. i've burned the Win7 ISO at x4 speed to ensure I get a good clean copy and I've booted from the DVD and stared installing 7. Everything goes fine (it installed and expanded all of the files very quickly) untill it restarts to boot into 7. I am able to choose between 7 and XP and when I choose 7 the new flashy windows boot screen comes up for about 10-15 seconds and then it goes blank and the monitor displays a "no signal" and the computer just sits there. No DVD action, or HDD action going on at all. I tried starting in safe mode and it gets a little farther and shows the setting up for first use (something like that) but tells me that I can't complete installation in safe mode. I've redownloaded 7 again and I will be burning another copy of it tonight to make sure that I didn't get some kind of error on the first disc but it really seems to me that there may be a driver or hardware issue going on that isn't letting windows finnish setting up. Also when I boot into XP I can look at the partition that I have for 7 and see that all of the directories for windows ect are on the partition (well at least it looks to me like everything is there). system specs: AMD Phenom II X2 55BE ASUS M4A78 PLUS G-Skill 4GB (2x2GB) DDR2-800 HIS HD 4850 Seagate Barracuda 7200.12 500GB Antec 550W PSU Everything except for the PSU is less than a week old. The PSU is about 3-4 months old.