Ok I find this to be a pretty weird problem. I have w7 RC 64bit installed successfully. My primary drive is first on the boot list of hdds and my current boot order is removable, cd-rom, hard drive and I have other boot methods disabled (had to because it was trying to do a network boot before). Basically, it boots fine into windows as long as cd-rom is before the hdd in boot order AND I have the w7 RC 64 boot cd in the drive. If the CD is not in the drive, or I move hdd before the cd-rom in the boot order, I get the following error: "DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER" Is this a MBR issue and is there an easy way to fix it? Do I need to reinstall windows 7?