Weird lighting problem (red/blue tint problems)

I have recently been getting strange lighting problems in the mac version of my torque made game.

I'm not sure what is causing these problems, but they do not appear in the windows version. I have recently upgraded to 10.4.x, and am using torque 1.3. All my dif structures are tinted weird shades of red and blue. dts objects, including players are fine, and the terrain is fine. Only dif's are acting in this manner. I tried deleting the mission lighting files, but that did not fix anything.

Here is an example of the problem:

Any help would be greatly appreciated!
Thanks,
Will