No, MS wavetable isn't selected (in MIDI devices output, I assume?)
However, I just played with things a bit, and as long as I leave the sampling rate at 44.1k in the drivers settings of preferences, when I start SONAR up again, things play right away. I can change it to anything once the program starts, and things are fine, but if I don't put it back to 44.1k before shutting SONAR down, no sound starting up. And it looks like the minimum to get sound back is to go to Preferences -> Driver Settings and select any frequency, even the one the same one, and that corrects the issue.
All of my hosts were set to 48k, and only SONAR has a problem with it. I wonder if SONAR isn't initializing that in ASIO4all properly?