Need some help re-building a multiboot system I had a system with a single drive setup with OS Selector, allowing me to boot into XP w/IE6, XP w/IE7, and Vista Home Premium w/IE8. All was well and lovely. None of the three were aware of each other. Then I tried to get Windows 7 RC installed, and things went badly. The first time, Win7 worked until I restarted it, then it disappeared from OS Selector, found it was attached to the Vista install's boot, but still failed. Decided to get rid of Win7 and the old Vista install, try again. Reinstalled Vista (still, each OS has it's own partition), then Win7. Same problem, but now Vista was booting from the first XP install, then OS Selector stopped working. After activating it failed with Error 03. After reinstalling, it failed with Error 03. Nothing boots. So, starting from scratch but asking for help this time because I clearly screwed something up. I need to accomplish either of the following: 1) a multi boot system with two XP installs, Vista, and Win 7. All on their own partition, all completely unaware of each other. 2) Same but without Win 7. I have a Dell Inspiron 530s and a single hard drive (plenty of space). I mention this to explain why OS Selector doesn't recognize my DVD drive so I can't boot from discs from within OS Selector. Any advise is greatly appreciated. Thanks!