Can't see 3D models in World Editor?

I have tried the FPS demo included in the Torque 3D 2009 Tools Demo 1.0.1 and the 3D model of the player and his weapon are both invisible. I have checked the datablock for this model and "renderFirstPerson" (or something like that) is set to true for both the body and the head of the character. I have unchecked "specular" from the lighting section. (These were suggestions I found in the forum.) But Gideon and his gun are both still invisible. One guy said he found that the materials were "misapplied" and he fixed that, but didn't say how. Any ideas?