It seems impossible to export a file in H264. It works in mp4.
The problem is on the mac version, because exportation in h264 works fine on a PC on XP.
I have G4 and MacIntel (imac duo), and the problem is the same on the different machines, using of course the PPC version on the G4 and the last nightly build on the MacIntel.
Any reason for the problem?