I've created a gmax calibration box (a la the gmax tutorials) with different images for top and bottom, left and right. The "flip normals" step confuses me but I think it turns the box outside in... Looking at the box the top of the plane looks like the bottom and vice versa. I don't know it that is how it is supposed to look (because it is flipped) or I should have used a bottom image for the top and a top image for the bottom.