Hi Arno, I've been using Sketchup to work on a model of the terminal building at Iqauluit in northern Canada. (Yes, it really does look like that ). I've exported and converted the model several times (using latest build of MCX) during the building process and it's always worked fine and the model displayed correctly in FS9. With the latest build of the model, however, something is not working. The model displays correctly in Sketchup and in MCX, but in FS9 most of it is missing. The missing parts all use native SU textures, and those same textures are used on some of the parts that do show in FS9, so I don't think it's a texture problem. I've gone over the model and eliminated all extra polys and anything else I can think of that may have caused a problem. I've simplified the model by eliminating at least half of the trim lines on the outside. I tried converting an earlier building I had made and had no problems. I'm wondering if this model has just gotten too complex? A while back I tried making the same terminal in Gmax, and as it was nearing completion Gmax started crashing whenever I loaded it. I had to give it up. Sketchup seems to be handling it fine, but now I'm unable to get it to show in FS9. Would you be willing to have a look at it? If so, just let me know which files you need and I'll send them to you.