Question : Cannot start the reminder service - Outlook 2007

Having problems with a particular mail profile.

First problem was the items in the Inbox were not being displayed.. however it showed 27 unread messages. I turned off cached Exchange mode and the emails were then displayed. However this error is now appearing when I open Outlook

"Cannot start the reminder service. Cannot show reminders. Your server administrator has limited the number of items you can open simultaneously. Try closing messages you have opened or removing attachments and images from unsent messages you are composing."

I can get to the Calendar after a few tries and then I get "Your server administrator has limited the number of items you can open simultaneously."

Any ideas on what I can do to fix this? I have applied all the latest Office updates, have installed hotfix 970944. Have tried outlook /cleanviews & outlook /cleanreminders

Answer : Cannot start the reminder service - Outlook 2007

Solution found.
Turn off Cached Exchange mode > Rename or remove .OST
Turn on Cached Exchange mode, let Outlook recreate the .OST