My girlfriend's Imac keeps getting kernel panics and now I can't even start it up! The panic starts before the desktop opens. I have just tried a pRAM reset but that didn't do anything, the veil came down before any second chime This has happened before, when downloading music, but this just happened when I ran a software update as iphoto wasn't launching right. It is a second hand computer and I don't know where the discs are! What can i do?? Any advice appreciated!