I am running on AC. I am using SP2. Windows updates is on auto mode, so I think I am running the latest version.
It is not that is get slow or just stalls for awhile. It gets totally blown out of the water for no reason other than that it has just sat idle for, say, 3 hours. I am running other applications all the time in other windows, and they function fine. It is just Outlook that gives up the ghost, sometimes several times a day. Although, even that is random. Sometimes it can work pretty much all day without any problem, but that is seldom. The upper part of the screen gets pretty much destroyed, like an RPG hit it. Sometimes I can just X out of it to close it, but usually I have to ax it externally.
I "know" it has something to do with interacting with Win7, as I never had any problems with Outlook before the Win7 upgrade.
I have attached a shot of the add-ins I am using. Nothing strange there as far as I can see.