I had turbocad 10.0. I had some issues and went to turbocad support, it came with free 30 day support. I put my question in an email, sent it with the date of purchase. What I got back was they wanted $25.00 per email for the support. So I replied I had removed from my system. So much for their "free" support
I have thought about trying a new version but with sketchup, free is way better plus you have tons of support and free add ons from the world. Been plying with it and sort of know what I am doing.
http://www.sketchup.com/
Buzz.