audio drop out in Encore AND Premiere

Strange problem. I am trying to burn a dvd with Encore. All the files play fine
in QT, all the audio is there. once in Encore, it randomly picks clips to not
play audio AT ALL. Sometimes it will play part of a clip then drop out audio. I
have re installed and tried several tricks, like bringing files into Premiere
Pro to render out a different file type. Now my premiere wont play the audio
randomly either and the file produced has no audio! all other audio/video apps
running fine. Not sure if its a Adobe Production Studio problem or a glitch in
my system, thou as I said, rest of system works fine.
Any suggestions would be greatly appreciated!!

What video file type?
What Audio type?
What sample rate?

Well, thanks for reply but I got it to work after several work arounds, thou my
Adobe products still seem to be working strange(Not opening as I closed them,
etc.)
So, foe giggles, here was what I was working with.
I digitized some footage from a digibeta into my Avid where I exported Quick
Time reference files to be used in After Effects.
In After Effects I exported Quick Time Movies with Blackmagic codec,8bit, with
4800k audio, uncompresed. All where NTSC 29.97. Files play in Quick Time/Windows
media player no prob.
Installed Blackmagic codec on my home system for the final build with Encore2.0
DVD and thats when all the fun started. Encore would play files fine but then
start to randomly drop out audio at burn.
To solve this I pulled QT's into Premiere Pro2.0 and exported WAV files to swap
out for in Encore. This almost worked until Premiere started to mimic the Encore
problems with random audio drop out.
After several retarts of the programs ( they would both have ASIO driver
problems and quit audio. I replaced my driver, still same problem. whew!)I got
the files all rendered.
Wow, still with me? Thanks! so long story I finally got the QT re rendered in
Premiere to DV files that worked fine in Encore.Still think I have a system bug
or somethig due to the fact these programs and Photoshop too are acting
"wonky", crashing out or locking up, etc.
Thanks for the intrest!! any suggestions on system checks would be great!