I've been using outlook for years now, and I've never run into this problem before. Using Microsoft Outlook 2007, with only 1 email account, and no more than 100 emails in my inbox (though I have many many folders, with emails in them), Outlook can sit around and eventually get up to 700mb of ram usage.
I've tried different types I've read, like compacting my folders, or not using Internet Calendars / RSS features, and right now I've even disabled Xobni...but still no effect.
Any ideas?!
Thanks!
Ben