I hope everybody doesn't hate me for saying this but I am no longer as enamored of OSX since 10.4 came out. I don't know why they would compromise X's legendary stability, but my 12" pb 867 does all sorts of goofy crap these days.
One thing is that since installing 4 my 20g iPod will not dismount, so I have been forced to just unplug it a few times.
Just yesterday I went to turn it on and it wouldn't turn on. Nothing. Totally blank screen, no noise, even when I plugged it into the wall or my powerbook.
I exhausted the troubleshooting steps suggested by apple so I popped it open when my brother told me that disconnecting the battery was the surest reset method. I did it, and sure enough it sprang back to life, showing an empty battery, even though I left it plugged into the wall all night after it wouldn't turn on.
Any ideas what happened?