Dang! I just tried the 3DCORBIT command and I got my floorplan spinning! Too funny!
I don't work in 3D, Mini, but I have some friends that that do, I'll pose the question to them and let you know what i hear.
This is also a great resource for CAD questions:
www.augi.com you have to register first, and then go to the forums. There are some great people there.
