Windows Phone Thoughts: Still Having Alarm Problems with Windows Mobile 5?

My Jasjar, with only four third party apps installed (FlexWallet, ZoneCalc, SOTI Pocket Controller, Skype), stopped doing reminders recently. They'd just never trigger. I decided to do some testing, so I'd enter a reminder, wait 30 seconds, then hit the power button. No reminder would ever trigger. I'd enter in six reminders, wait 60 seconds, then just close the lid. No reminder would ever trigger. I've recently hard reset it again, installed no 3rd party software at all, synched with my Exchange server [affiliate], and now I have reminders functioning properly. Puzzling. Since the reminder problem is one that dates back a couple of years - Pocket PC 2002 was when the problem first cropped up I believe - I thought I'd do a quick survey and see how many people with Windows Mobile 5 devices are having some level of difficulty with alarms and reminders triggering.