Yeah, Outlook has a file size limit. Used to be 2 gb, think it's now 4, at least for Entourage (Mac version of Outlook) it is.
One of the reasons I hate MSFT. I hit the 2gb limit and THEN it said, "hey dude, you hit your 2 gb limit, so sorry, all your mail is toast". To add insult to injury 2 weeks after they issued an upgrade that bumped the limit to 4 gb and now when you get close to the limit it warns you beforehand.
Hey Dave, Ray showed up today. He got a speeder an hour out. 70 MPH zone, clocked at 90, he was quick on the brakes or it would have been higher
