Ok, step by step again:
1. Running the game in windowed mode, the game doesn't even start, crashes every single time in the first or second credits screen. So yes, I agree in the fact that windowed mode is still pretty buggy
2. Already did the fonts things tried every possible combination. Doesn't work.
3. I own a razer Mamba mouse, which uses some kind of program to regulate the dpi, and some other parameters. Anyway is easy to close the program. I did, this one, and any other program susceptible of being closed was closed. No changes on the symptoms. Still freezes the same when I move my cursor.
Atm I'm working in disabling the mouse hardware acceleration, but I've been unable to do it. Seen many posts, and none of their ways are working for me. Any help on this? I'm using windows 7 x64.
At least all the things above are discarded.