Ok, XP32 on first partition, win7x64 on second. I just let win7 put its boot loader in, then modified it slightly with BCD. I'm wanting to try Ubuntu but I have absolutely no experience with it. I've been trying to gather info from the forums, but read something about chameleon 3 only working with 64 bit OS, and some people are having issues with a Grub loader and not being able to boot back into windows. Can't I just install Ubuntu on a third partition (already partitioned and swap file on separate drive) and then add it with BCD? Or will it try to put in its own loader, missing XP and 7? I can't afford for this puter to go down, as my other one doesn't have SATA connectors (no external cases or PCI adapters locally) and there is critical info on this puter (yes backed up to another drive on same computer). Suggestions please.