I have verified ajo's operations in the same TW project. She is on a PC, I am on a Mac G5 as the team leader. As I change transparency in the 3D window setting from off to on (as well as the other way), the glass changes transparency only after selecting the glass (walls), opening the tool settings, clicking ok w/o making any changes, then rebuilding the SE or 3D window.
I have even taken this a step further. While generating a 20,000 frame movie of this same project (saved as a .pln) in black & white, some doors with glazing would sometimes appear as solid panels instead of as french doors. Just before creating the flythru, if I select the doors with glazing, open the tool setting, click ok, the doors generate correctly. I originally thought it was a setting in the doors, but now I am perplexed. I will try this on a different 8.0 project.
mabe
G5 dual, 2GHz,1 GB ram