Mouse Error

I’m having some issues with the functionality of my mouse with the demo. Whenever I try to run the demo, the mouse visually goes straight to the bottom right corner of the screen, and I can’t move it. And when I press the control button, it does the circle location showing the mouse in the middle of the game screen, but it doesn’t move. I can’t click anything, and the only way for me to get my mouse back is to alt+tab to another program. The demo is version 2.4.1, which is the latest version as far as i can tell. Is there a fix for this? I tried running the demo in compatibility mode with xp and vista, but that didnt’ help. Does anyone else have this issue? Is there a fix?