Ah, I got the answer from this thread: http://area.autodesk.com/forum/autodesk-maya/python/commandport-doesnt-work-in-vista-32/
Basically, you need to run your commandport twice, like so: commandPort -name "127.0.0.1:6000" -echoOutput; commandPort -name ":6000" -echoOutput; Crazy. (and I'm not sure why google groups likes to change my reply name from my post name...) --~--~---------~--~----~------------~-------~--~----~ http://groups.google.com/group/python_inside_maya -~----------~----~----~----~------~----~------~--~---