Originally Posted by nigelm
Still not managedto resolve this...
I performed the cdo.dll reg fix but that was a workaround rather than a fix, I could really do with a permanant fix???
Which reg fix?
Did you search, there have been lots of threads about this. For a start I would -
Get to MR5 - some cal sync fixes in there as per usual
Use the MS best practise KB to reduce delegates etc for affected users and ensure they accept invites in the way MS wants them to
Assuming your CDO.dll files are all current and matching, I usually see this solved by looking at delegates the user has and their invite-acceptance behaviour.