//I had PD running with the drivers that came //with my Linux distribution but //the test sound was "stuttering."
If you haven't already, try starting PD with the -frags 4 option. This should work, particularly if you can get sound out of other applications in Linux. Other than that, I wouldn't have anything to offer. Best of luck!
Garry Kling CWU Music klingg@cwu.edu