Hi everyone, First post on this paticular forum. I have seen great reviews on version 4 and have version 2.0 and 2.1 upgrade from 3D World magazine and thought I would try it out (actually did a little when I was using Win98), when I install it under Windows 2000 I get to open or new and the program just disappears. Does version 2.1 work on 2000 or do i have to try the 4.0 demo. Also, is everyone happy with 4.0, does it deserve the great reviews I have seen. Thanks in advance from a TrueSpace user.