Zen player help

Okay, i know at least one of you have one, so maybe someone has experienced this....if not it can serve as a warning I suppose.

B was going to add another album to his zen player last night, but first he did updates to his computer including one to WMP upgrading it to 11 or some such. His player was also connected since that's the only way he has to charge the battery.

Long story short, when the updates to WMP happened, it started randomly downloading music from his library into his player starting alphabetically. While trying to get it to stop, it somehow decided to spontaneously format his player, wiping all his music...and wiping away whatever was needed for his computer to recognize his player.

Yeah, I know, that explains the screaming and the waves in the ground from his fist pounding things that you heard and felt last night.

Not sure if he got it fixed or not last night as my migraine was precluding me from searching online for a fix for him. Gave him some generic advice and left him on his own. I'm sure I'll find out soon enough if it worked or not.

Anyone had something similar happen? If not, beware of updating WMP with your mp3 player connected to your computer.