Torque Game Builder - Build's that run without showing images (backgrounds, avatars, etc)

I have come across a big problem. I do a build of a potential demo game for a company that wants to see our work for a potential online game. The problem comes after building. The game builds and shows everything to be fine until I run the game. Some levels show nothing at all but a black screen, others show only a couple of enemy avatars on the screen with no animation or effects. What could be doing this? I have give the game a completely new name and have changed the folder location and everything. I'm out of idea's and the game displays no errors at all. Please help me with this problem guys. Thanks.

Richard