It seems like more often than not, unless I've just rebooted, my Droid X won't play sound through the headphone jack. I generally notice this when I stick it in my car dock (which is where I do most of my listening to music and audio books). Does anyone else have this problem? It seems to have started after upgrading to the rooted .596 update. I haven't found any sequence of events that causes the jack to stop working, and haven't found any settings that seem to bring it back to life without rebooting the phone. Any ideas?