Is anyone else dealing with frequent crashes? It happens to me quite often: the mouse icon will change to the hourglass, but it will freeze there. Eventually, if I click anywhere, I'll get an error message saying that the program has stopped responding. Any suggestions? This has happened since I first bought the game a few months back.
I have never experienced such a crash. However, since your issue might be mouse related, you could try this...
There is an advanced option to use "Hardware Mouse Cursor." Try turning it on and see if it helps. Admittedly, it's a long shot.
If that fails, you might try turning off some of the basic options that will improve performance, such as particle effects, dynamic shadows, and anti-aliasing.
Finally, make sure you have the latest video drivers. I have had games where updating my drivers fixed any issues I had. In fact, you might try this first.