I've installed Snow Leopard, Windows 7, and Ubuntu 9.1 (in that order) and they all work perfectly besides the fact that I can't boot into Mac OS X using the GRUB boot loader that was installed with Ubuntu. it just freezes and I have to reboot. I like using GRUB, and I don't want to reinstall Chameleon because I used an external CD Drive to install Windows 7 which I can't use any more to do that one extra step to make it boot again. Also, on my other 10v, I had Snow Leopard installed after Ubuntu and Chameleon wouldn't even find it. Please help me out here!