ok i thought my macbookpro was doomed, so i did a hardware test and i got an error related to the video controller, so i suspect the logic board is at fault i have a macbookpro with the famous 8600 nivida chip. so i booked in to get my mac looked at. and now today i turn it on and it boots fine no kernel panics or anything? what should i do? get it checked anyway? is the inconstant failing of the mac to boot related to the logic board problem? any suggestions i wish to read!!