I'm experiencing the same problem as James, with test-fog.bmx crashing out on renderworld->update->gldrawelements. If I comment out the loading of media/grid.b3d it works so it may be a problem with that model.
If I load grid.b3d into the test-anim.bmx program, it locks up when you press +/- so maybe thats a clue.
If I load grid.b3d into the test-anim.bmx program, it locks up when you press +/- so maybe thats a clue.