That'll teach me to get smug about the alarm problems sorting themselves out on my PDA. Today, for no reason the alarms stopped working again. The last time this happened was on the 30th January and I was convinced that the original problems had been down to my faulty PDA back-up program. Obviously not! Still, I'm getting used to getting it back up-and-running now...
1. Hard reset
2. Restore from backup excluding the PIM data
3. Delete all PIM related stuff in the notification queue
4. Resync with Outlook on the desktop