I didn't want to disrupt Colin Nicholl's thread with my problem, so here is my own post:
I too seem to be getting the audio dropout notice all the time now on my machine, but I also am getting a reproduceable crash. If I leave Sonar without using it for long enough (a few minutes), I get a white screen and Sonar is no longer responsive and I am forced to end the task through task bar. It seems if I work on Sonar without taking a break, it doesn't crash.
This white screen issue also seems to be related to the newest update. I haven't backed up any of my installs, is there anyway I can revert to the previous version?
Could this be corruption of a my current project?