I'm running MusicMatch Jukebox 8.00 full version on a Dell Latitude C4 under XP.
I've been running the program successfully (even since the mongrels shut down the website and walked away with our CD info database). However, lately, every so often I get the message "Waveout format not supported" and no sound comes through. I notice the speaker icon disappears from the system tray too when this happens. Then a few days later all returns to normal.