I have Outlook 2003 running in cache mode and most of the time things are fine. I have the preview pane active, but have turned off the setting of the item being marked as read after x seconds. For many of the messages in my Inbox, I assign a category before moving them off to various .pst files. Normally this works fine.
However, I seem to get periods where I cannot assign a category to un-opened message and get "Item cannot be opened". I then have to open the item proper and set the category, close and save the message before moving it away. This can happen on opened and unopened messages.
Just wondering if anyone else has seen this rather curious issue and offers of thoughts?