Lets see if I can try to explain this clearly.

I'm finishing a large project (yea I know I shouldn't used the beta) and as the last step I'm doing some voice overs.

I hit the arm button on the audio track and the record button and go at it. I stop, the window pops up asks if your want to save or rename the file. At this point I always elect to give the voice over a more descriptive name... so far so good. Then when I go to hit the done button sometimes the entire wave file I just made collapes, then disappears from the track,yet the file is saved to the hard drive.

I've seen this just about five or six times now and while I can't do anything specific to dupliate it, it does come and go with alarming frequency. This never happened in version three and I haven't changed any hardware or added any software... expect some Windows automatic updates.