I have a user with this weird problem. She uses webmail exclusively, and when she logs in she gets a blank reminder window that pops up, with sound and everything, and she clicks dismiss or close and it goes away, then 15 minutes later it pops back up. there is nothing in the window, no entries in her calendar or tasks.
If I log on as her to a regular outlook client connected to the exchange server, she doesnt get the reminders. this is only webmail, and to my knowledge only with her.
thats a screenshot of the reminder.
Any ideas would be appreciated.