I've always used full AutoCAD, but my brother recently started his own business and is looking to possibly upgrade from AutoCAD 2002. Most of the stuff I do for him is 2D, but on VERY rare occasions I'll do some 3D. I've never owned LT, but I've heard that the biggest limitation is it's inability to draw in 3D. My question: Can you install AutoCAD LT 2007 on the same machine as 2002? If not, we could install to a separate machine. Question #2 (more important): Can you import 3D solids created in 2002 into LT 2007? Thanks