@Streetdaddy - I've been using PM for a few months now. I was having those same issues. PM won't play the next song if you're ripping CD's to ITunes, or doing any kind of 'tinkering' in ITunes. For some reason, it stops play after the current track finishes. This won't happen if you leave ITunes alone while listening to music. Hope that works for you, it did for me.
-Lang
-Lang