Using pd on vista. I also ran across problems.

1. the audio settings are changed everytime i close the program and start it back up. when i set up the audio again. it knock the latency setting for my m-audio drivers all the way back to 4096.

2. midi in does not work. i know it works on my system because it works perfectly fine in ableton live.

i've also had zero troubles running pd on xp. so i know it can work on my system. it just seems incompatible with vista.