mouse-related problem with Wine
 

I just started using Suse 9.1, and decided to test Wine with Unreal Tournament. Everything works fine, except that the amount that the mouse can be moved in any direction is limited. So, in the menu screens, I can only move the cursor from the top left corner to a little past the center of the screen. Also, in the game itself, it acts the same way, so if I try to turn around, I get about 90 degrees in the direction I'm trying to turn and then I can't go any further.
If anybody can help me with this, thank you. :)
-alg82