Hello. I had a problem with my G4 iBook (last revision 1.33ghz 12-inch) where it would Kernel panic every now and then using the airport. It started less than a month after the 1 year warrantee ran out (surprise!) but I was moving at the time and didn't have the chance to take it to get it looked at. Last week I switched on the Mac and it Kernel panicked on the grey apple screen before it loads extensions. After restarting it plays the apple chime and then nothing... No HD spinning up or anything. I took the battery out, left it for an hour or so, came back and it was fine. It did the same thing last night, only this time, it's not fine.. if I take the battery out and leave it for an hour or so it'll try to boot afterwards, but kernel panics and then goes into the loop of not spinning up the disk etc.. Any ideas? I'm dreading it being a logic board problem! if it is, any idea on prices for a replacement? I'm going to attempt to use Target Mode to my desktop machine later to rescue all my project files (this laptop is used primarily for Music with a small amount of web stuff too).