I figured it out: I needed to bypass
TRON.exe. I hope that I'm helping someone by sharing my own solution.
So, the link on your desktop points to
TRON.exe, which is simply a launcher that invokes the game engine (Lithtech.exe) with the proper parameters.
By executing it you should be able to run Tron 2.0 regardless of the launcher. This is the command I use to run the game:
"C:\Program Files (x86)\Buena Vista Interactive\Tron 2.0\Lithtech.exe" -rez GAME.rez -rez sound.rez -rez GAME2.rez -rez custom -rez gamep5.rez -rez gamep6.rez -rez gamep5.rez -rez gamep6.rez -rez "C:\Program Files (x86)\Buena Vista Interactive\Tron 2.0\tcdg\game" +multiplayer 0 +DisableMusic 0 +DisableSound 0 +DisableJoystick 1 +DisableTripBuf 0 +DisableHardwareCursor 0 +DisableHardwareSound 0 +DisableSoundFilters 0
Also, the fix for the mouse cursor problerm (at least in my case) is setting the compatibility mode of the windows executable to "Windows 2000" and "disable visual themes" (i don't know how it is written in English, my UI is in Italian).