VS 11 audio filter and disc preview

[tikki]

I just recently downloaded UVS 11 TBYB and tried using it. I used DV clips, added some titles, overlay clips and used a wave audio file with the objective of burning it to a DVD disc. The following undesirable things happened:

1. i press on the audio filter button and the program crashes
2. i couldnt get a preview of my DVD disc before burning

what may be wrong? please help. thnx.