wine users - Jun 2010 - Problems with fullscreen + two monitors

I'm using ubuntu 10.04, and when i run games in full screen, like The Sims
3, and Counter Strike, the screen doesn't stop you from mousing over to the
other screen while playing. So I can't edge scroll on The Sims 3 on the
right side of the screen, cause it just goes to the second screen. Anyone have a
solution for this?