Appointments not showing when in Exchange Cached Mode

[Mick6969]

Hi I have a problem where a few users, using both Outlook 2007 & Outlook 2010 can't see some appontments in their calendar under the normal Day/Week/Month view. We are using Exchange 2003 SP2

If they change the view to "All Appointments" they can see them but there is no start date in the problem ones.If they open an appointment up that is in the future the start date is acyually there.

If they try to open once up that has aleady occured it says "Can not open this item. The end date you entered occurs before the start date"

Finally if I switch of Cached Exchange mode then everything appears correctly.

I have deleted the OST and re-created it.

I have started Outlook with /cleanfreebusy /cleanreminders /cleanprofilebut nothing seems to help.

Our users are out on the road and do need Cached Exchange Mode, please can anyone help?


Thanks

Mick