.mxf File Problem

Hey all,

I've got a puzzling issue here. For some reason, .mxf files that I've created using version 5 do not function properly in version 6. To be specific, the collective loads, but the audio engine does not seem to function properly, despite changing the audio driver, output, etc. Any ideas? I've tried using the standalone object as well in the hope that it was due to a different Max preference file, but that didn't change anything. There has to be a logical solution to this. I need the collectives to work with both version 5 and 6. Any info you might have is more than appreciated.

Thanks,

Marc P.