Go to the Setup
page and the Video
1. Select a resolution that's lower than your desktop
(ie. If you are running at 1024x768, select 800x600 as the game res.)
2. Click the Full Screen
option to Off
3. Click Apply Changes
Although this a less dynamic way of playing the game, I find it handy when I'm arranging games on MSN and giving out IP addresses etc before a game. It's also easier to Alt-Tab out of mid-game if you need to.