I have been dormant in my TC use for a number of months, making me a bit rusty, plus I seem to have a stability problem on the desktop I used to use for TC, but that seems to have been helped by moving to a Vista laptop. However, I have a problem doing some hidden line renders such that the render appears to have been sectioned. I understand that this could be a highly useful feature ... but it is one that I haven't used to date so I don't know how this section got established. I can't find anything in the help about deleting sections and a brief effort to try to create a new section in a more useful place got me no change. Wireframe looks fine and some hidden line look fine, but a few of the hidden line versions are sliced off in non-useful places, although the same layers will render properly from a different view. All the problematic views are isometric ones.