Hi Kirk,
Noticing some strange behaviour with 4.4.3.3 - it has just 'vanished' a couple of times today. While working in another program (experienced it using Outlook 2003 & Photoshop CS2) all of a sudden PM disappears from the task bar and is nowhere to be found anymore except in the process list in the task manager. I have to kill that process before I can start up PM again.
Even tried restoring an older backup of my complete system as I had installed iTunes 7 which seems to be buggy, hoping that would fix the problem, but alas. The only changes I've made to my system are: installing Qimage, the latest version of BreezeBrowser, and MS Mappoint 2006. And updating PM of course...
I'm going back one or two versions to see if that helps me get rid of the problem.