UPDATE AGAIN: V just crashed it too. guess it's the kb. I'll call apple tomorrow. UPDATE: Well, It had been working fine until yesterday when it messed up. It has now messed up three times today. Every time it messed up I had just typed the letter between b and d. Is this a virus or did someone get on my MB and play a joke on me? Seems odd that a hardware problem would be related to a single keystroke. Also, I unintentionally hit (md + that key and no problem. ORIGINAL: My Fall 2007 Macbook (White) had never crashed at all before yesterday. I was on adium and it just up and rebooted. I let it reboot and it kept crashing. It would crash in adium, firefox, and safari. I had been using it a lot (and it felt hot to the touch), so I figured it just overheated. I let it cool and it worked fine all day today. Tonight, I was working on a word document, and it crashed again. The case didn't feel hot, and when I rebooted, the CPU was only at 55*C. The only similarity I can find is that I was typing every time it crashed. When I left it on all last night, it didn't crash on me at all. Ran a couple sweeps of memtest and it all came out ok. Also went ahead and cleared my PRAM. I know this isn't very helpful info, but does anyone know what's wrong? Or what I can do to get more info on what the problem is.