OS help

Okay, I love OpenSuSE. But when I try to get XGL/Compiz to work it does work until I reboot. When I do that it won't boot into a GUI at all. So, if anybody could help that would be great. I have to say Vista is looking pretty shaggy with its bland 3D effects. I'll have a post about 3D desktops at a later date. Gotta run and try to rescue my computer. It's dying again.