Having the same issues. This time with NTSC DV anamorphic – not HDV. Seems like people are having the same render/ export issues regardless of machine or format. I am also having trouble exporting from QT. I assumed it was a Flip 4 mac issue. Now I am wondering if it is a quicktime issue. A quick pole:
What version of QT are you using? Do you have Flip 4 mac installed?
I have QT Pro 7.3.1
OS X 10.5.1
FCS 6.02
G