I'm a bit queazy in the stomach as I'm typing this, as I'm really worried that my late 2006 C2D 2GHz White Macbook could be on its last legs, as I'm not sure what's causing my problems as of late. The problems started two months ago, as the screen started to dim at random to the lowest brightness setting. Scrolling back to the lowest setting and bumping it back up would fix the problem for a while (a few hours at most), but it's so bad that I had to hook it up to a external display to fix the issue. The external does not flicker on and off. Just an annoyance mostly. Then two weeks ago, the computer would randomly restart sometimes after I woke it up from sleep, and it became more frequent with time, where it would happen every time. Verified my hard drive and it needs to be reformatted. Already saved my data so it wasn't a big concern, and when I hooked my computer to external boots, none of the behaviors showed up. So I reformat and reinstall my main drive. Things are fine, then I run verify disk again, and it's corrupt already after two days. I go to one of my backups, and runs fine...until the behaviors start showing up under this external (but then again, this was a clone of the hard drive that started the issues). I then repaired the original, and I didn't have to reformat. So all boots are working fine, happy right? However, last night, it takes 3 or 4 boots to get the system up (under both drives), and it ran a bit hot with just safari on. I did some searching, and alot of signs point towards a logic board failure, and that usually means game over. I also suspect RAM failure, as sometimes, it only picks up one of the ram sticks. I still wonder if it could be a hard drive issue. Any ideas? I realize that it's five years old, but I would really want this computer to last as long as it can. Thanks.