Coupe q - Passenger Window Failure

[ir000185@pop3.interramp.com]

Hi all...

More problems...

I noticed this evening that my passenger window was down about 1/4". I turned the car on and put the 
window down...

*CRACK* and the windows rattled in it's track.

I then tried to put the windows up. It went, but slowly... I tried to go down, maybe 2" and it was vary 
slow. When I put it back up, it took about 1.5 seconds before it actually started to travel upward. 

What did I do?

I'll tear the door apart this weekend, it this a common failure mode, or do I have a good one dealt by the 
gods?

Thanks,
Todd

'90 Coupe q (Minus Power Window)
Other lesser beasts (with working power windows)