I have a bunch of drawings I did in previous years with TCAD for Windows. I currently have TCAD 16 Deluxe. I don't do any 3D stuff; just 2D drawings. I now have Windows 7, 64-bit; and TCAD 16 doesn't seem to work properly with it. Would TCAD 18 Designer work for me? Since I don't do any 3D work, I'd just as soon keep things simple and not have any of the 3D stuff in my program. However, if there are any 2D functions that Designer is lacking, or if it might not work properly with all my old drawings, that would not be good. Do you recommend Designer for me?