In-game cursor won't work!

[Logan]

When I load up the game tthe in-game cursor doesn't move around (at least visually) making the game completely unplayable. It's also happening with revenge of the titans. I'm not sure if it's my problem or what, but if it's at all possible please make a patch!

[Logan]

Okay, the cursor isn't working for Ultratron or Titan Attacks either. Kinda pissing me off here.

[Logan]

Neeeeeevermind, I got an email with some solutions and it's working now. Thanks for responding.

[cprince]

For posterity, what was the problem and solution?