I have a powerbook g4 1.5 ghz. and having been getting consistant kernel panics this past weekend. I've already repaired disk utitlities and permissions... booted into safe mode.. checked my ram. I can't notice a certain time these are happening but I always get the message that mac osx has quit unexpectedly. Pleaseeee help me. I'm scared to reinstall mac osx because i'm afraid something will go wrong... if that is the route i have to take do i also have to reinstall all my other programs?