I have a User on Outlook 2003 (under Windows XP Pro SP1) whose calendar reminders weren't working at all. I tried the /CleanFreeBusy and the /CleanReminders parameters on the Outlook shortcut but neither worked and I ended up recreating her Exchange profile and she's now working fine - or, at least, the reminders are now appearing when they should.
During the course of creating a few test appointments to check that the reminders were being fired off, (both before and after the profile recreation), I noticed that the default reminder time for new appointments was showing as 18 hours. She suggested that, while this was relevant for some of the less frequent regular meetings she has, most of her appointments should have reminders set closer to the appointment time. I checked her Outlook options (Tools|Options, then the "Default Reminder" time drop-down in the Calendar section) and it was set to 15 minutes.
Is there anything that can override this 15 minute setting and, if so, how can I revert it? Any and all suggestions welcomed.