I have just uninstalled a non-functioning vista boot camp partition via the bootcamp assistant uninstaller. Now mac os x snow leopard wont boot normally. It shows a black screen with a blinking underscore or just a plain white screen. The only way to by-pass this is by pressing down option and booting into os x snow leopard. Any help will be appreciated. When I try to install vista or windows xp via bootcamp 3.0 on snow leopard, they both get stuck at the finializing install step and wont re-boot. I have tried using disk utility and using different versions of vista. PLEASE HELP!!