I have a user who has a strange problem in Outlook 2007. She has a
rather large mailbox, about 4.5GB. When she deletes an item from her
Inbox, the message is not removed from the list right away. After some
time, it gets removed, or sometimes she needs to close Outlook and go
back in again. She recently migrated to Outlook 2007 (cached exch
mode) on a new machine with XPSP3, and she never had this issue on her
old laptop. I have reduced her mailbox size quite a bit, in the last
few days it has been decreased from almost 6GB to current size of
4.5GB, but this does not seem to have helped, even after compacting
the OST file.

I have a feeling it's due to the large OST file that is thrashing away
at the disk removing the messages from her Inbox, so I thought
reducing her mailbox would help but so far it has not. Also since this
laptop is much newer and faster, I'm suprised this problem never
happended on the old laptop, although it was Outlook 2003 so not
exactly comparing apples to apples here. Any ideas?