Thanks - not sure if it's related to the database bug because I am running Pocket Plus 1.3 and have the startup fix enabled. Same was true with my X5 with WM2003. For awhile, I was actually wondering whether it was related to some conflict between the inadequate manner in which WM2003 handles repeating reminders and the way that Pocket Plus handles them. Maybe i'll remove Pocket Plus and see if the problem goes away with WM2003's repeating reminder set.
... or maybe i'll just rely on my alarm clock :D