Been burned already once by the 2GB database file size bug. Fortunately I didn't lose much because I had a backup plan in place. You regularly backup your email database right? I now use a different application than to trust micro$oft with my email! @:-)

Which begs the question:
Why on earth do you trust a flawed approach of software design that holds all your emails in a database file that can get so big??? All you need is one sector on your hard drive to go bad, and there goes MB or GB worth of information! Yeah, they supply a utility to repair the database, but what if the database gets corrupted beyond what this utility can fix?