BCM Reminders repeatedly appearing

I'm sure this is a simple case of operator error but I've got a reminder box
for ALL my BCM contacts which I can't clear. When I click dismiss all the
reminders re-appear acouple of seconds later. I can snooze them, but I can't
dismiss them.
I've tried >run>outlook.exe/cleanreminders which hasn't worked. We're also
using OA if that makes a difference.
This is driving me mad!
TIA