Outlook cached mode can cause problems…

Have you had the problem where Outlook sits there, forever, waiting to “update current folder”. I recently had this problem when changing an Outlook 2007 client to HTTP over RPC. After I made this change, weird stuff started to happen. No problem I thought. I will use scanpst.exe and attempt to scan the file. In the past, this has been where most of these sorts of problems lie. This was quite a large file, 3.5gb. After this had completed and still didn’t work, I started scratching my head a bit. What would cause this to happen?

After a bit of testing, I found that turning cached mode off let the folder update. I then proceeded to delete every file out of the Outlook folder (under local settingsapplication datamicrosoftoutlook) apart from the ost file and archive folders.

This fixed the problem. This is the first time I’ve come across this so I thought I’d share.