I use Outlook to read email off multiple IMAP servers. I'm successfully using Outlook 2007 to read email from an XP laptop, and from an XP desktop.
Last week I got a new Vista PC, and tried to get Outlook 2007 to access to the IMAP server. It connects fine, starts downloading (the thousands of mail messages), and then it hangs - Not Responding. I can't seem to ever get it to work. Sometimes it just gives an error 0x800CCCDE in the progress box.
My hypothesis is that it takes so long to load the messages that something times out in Outlook, but I'm not sure that's true. It's a brand new machine, without anti-virus yet, so it's a pretty plain vanilla config. The IMAP store is fairly large, but doesn't seem unreasonable - it represents a normal medium-heavy use email account.
The whole goal of IMAP is to store content on the server so you can access it from multiple places, but I can't seem to get Outlook 2007 to syncronize with an existing mail store!
I'm not sure how to diagnose or to solve. Perhaps I could copy over the PST files from a working config - maybe that would reduce the download needs?