That's a Quicktime error. We can't advise further without knowing your eyxact comp and render settings.
- Best Setting
computer info I already gave in 1st message. let me know what else you need.
What version of Quicktime do I need, PRO ?
Don't use h.264 as a codec. Try anything except MPEG codecs from the Output Module. If you must have H.264 then use the Adobe Media Encoder to render your AE comps.
This works partially, I'm trying to do this in MediaEncoder CS6 and exportin to FLV, but nothing happens when I choose that option, in AE when I choose FLV it works.
At least MediaE works with h.264.