Here's a new one:
At work I connect my MacBook via ethernet cable at my desk, but there are several wireless signals available from nearby labs, so I just been turning the airport off. The last two nights when I have gotten home I opened the MacBook and turned on the airport via the menubar..... spinning disc..... grey screen.....CRASH Notice. Upon reboot everything is back to normal. I'm not running anything unusual when this happens, just Mail, Thunderbird and Firefox, maybe Office or iTunes.
I guess I should just leave the airport on all day, or shut the computer down when I leave work, then reboot at home. Not a major issue I guess, just strange. Has anyone else seen this?