I think last week I accidently upgraded to quicktime 7.3.1.  I'm running mac os 10.4.11, and I didn't know there would be a problem running after effects cs3.  Now, all of the sudden, if I try to render something out with audio, I get this:

then the program crashes and quits.
I guess I need to downgrade quicktime.  Anybody know which version isn't so lame?  Or how to?  I think I could downgrade to quicktime 6, but then itunes and lots of other apple programs start to bug out. 
My next project is definitely going to be traditional.
