Problem exporting proj's with alpha layers
 

I am on a PC with Premiere Pro CS3 and have tried both AspectHD (using cineform presets) and Neo HD (using adobe presets) and haven't been able to export a timeline to a Cineform HD file (I prefer the .mov) without getting some memory reference error and Premiere crashes.

The problem seems to be if there are more than one video with an alpha layer in the timeline. All test exports I run with timelines NOT containing alpha layers work just fine. I do a ton of work with video with alpha layers... from digital juice stuff, overlays, lower-thirds, green screen, etc... so I desperately need to be able to export projects containing these kinds of video to a Cineform QT file for use in Sorenson Squeeze.

Let me ask this... does AspectHD or Neo HDV/HD allow me to export timelines using the QT Cineform HD format that have multiple layers of video containing alpha layers? I just kinda want to know if AspectHD or NEO is supposed to have these capabilities. If they do, then at least I know something is awry that can be troubleshooted.

Is there any other scenarios that could cause a Premiere CS3 to crash during a Cineform export? Any formats that aren't allowed in the timeline or wierd combinations of formats?

Thank you for any help.