Whenever I get an email, Outlook (2003) opens a small yellow window in the bottom, right hand corner of my screen, giving me a little preview of the email; who it's from, the first couple lines or so, etc.

Does anyone know how to turn this feature off? I can see how it'd be handy for some but personally I find it distracting and I'd love to get rid of it. I've searched through Outlook and I can't for the life of me figure out how to stop that little preview window from popping up.

Help?