I take it you didnt download it before you bought it? Dolphin is a 2.5D cad/cam system. I've owed and used Bobcad in the past and IMO I like Dolphin much better. Solidworks IMO is one of the best CAD packages out there. For 90% of what I do, Dolphin does a spectacular job. For the other small portion, I use a package called Surfcam to do the 3D stuff.