Alright, so here is the problem I'm running into. The GP40 didn't have it's own CabView.GeoPcDx file because it was using the CabView from the Kuju SD40. I took the Kuju CabView.Geo and put it in the CabView folder for the GP40. I edited both the .GeoPcDx and the engine.bin for the repaint. I put all the textures from the SD40 into the CabView textures folder for the GP40. I got the missing texture banner now in the cab. I'm starting to get really confused!

jtousign, do you by any chance remember if the St. L&A textures showed up in the cab view before the first fix I posted? I don't even remember.