Thanks to mateo and hoofd for your valuable advice. I'll play puzzles with the car later today. I'm beginning to learn that one HAS to have the patience to render, render and render some more in order to see what's going on. For example, the oddity on this car where the 'bug bra' might be...maybe that's what it is, with the model maker's name on it. Hoofdcommisaris: how huge a file in pixel dimensions do you use?