Two Different Sized Monitors

I recently hooked up a new video card and monitor so that i can play 8 tables with no overlap. However, one monitor is 20" and the other is 17". Both monitors are set to 1600x1200 resolution, but for the 17" one i have to move the mouse to the edges of the screen to shift the view.. i can't see all of it at once. Is there any way I can make it normal?