Ha! I told you you should try it on version 7. My guess was because the software retailer said the number came from Google and I guessed Google would not be giving out v6 licenses. So I thought there was a good chance it was actually for v.7. Well, glad you got it to work, even if you didn't believe me Chris

@clj18 said: Hello, II am trying to display my model as a cross-section, and the building lines need to be thicker than the rest of the lines... thanks so much!!! I take this to mean any part of the building that is cut in the section, and you can control section line thickness under styles / edit in the fifth tab (solid purple cube"modeling settings"), section cut width. However if you are cutting through cabinets etc. and do not wish these to as thick, you're out of luck.