MSOutlook error mssg pop up: "The messaging interface has returned an unknown error. If the problem persists restart Outlook." Restarting doesn't work - I cannot send/receive/delete. It shows progress in the lower right hand corner (file folder icon w/percentage of download complete, etc.) but always defaults to an error and nothing is received.
I've run a Scan of the PST files several times with no luck. Tried resetting PC to earlier time/date too. Nothing working yet.