Tracks play but all I hear is white noise

[krelnarb]

After opening a session playing or using the scrub tool (the little speaker) will result in white noise (or a close approximation) Sometimes closing and re-opening the session corrects it, sometimes closing and re-opening pro tools, sometimes rebooting. Sometimes nothing at all. I can see the meters responding to the waveforms on the tracks but all that’s heard is white noise.

So far I've been able, after a few tries, to get it to play back and get some work done, but it seems to be getting worse. This is over the last few days.

I’m running 6.9 LE with an older Mbox on a G4/733 with 896MB ram. Worked great until a few days ago. My Audiosuite stopped working while in the middle of a session. It would preview and go through processing but the file would be unchanged. It would get a new file name but sound the same as it did before processing.

I deleted the preferences as outlined in the Troubleshooting thread, and the Audiosuite worked again, but now this intermittent white noise problem along with requesting to re-link to files that aren’t there (they’re listed in the re-link box in italics) shows up.

Any suggestions would be appreciated before I delete the preferences again.

Thank you
k