I never have mouse freezes unless another program is running, or if I have clicked my mouse after clicking on the IL-2 icon.

Look man,

I had this problem, but no more -- the mouse only worked in 16 bit color, not 32 bit. So I searched everywhere on the web and there was no solution I could find. So then I remembered that many games react negatively to windows aero desktop compasition, so I ran the games executible [il2fb.exe] in compatibility mode XP(sp3) and disable desktop composition and chekoff run as an admin. Works perfectly.

Aero desktop composition is bad for games, even worse for games made befor vista and 7.