Uh-oh: "Cannot retrieve model" error
Boo! I can't open certain .prt files on my new computer. I suspect the change from Windows 8.1 back to Windows 7 is the cause. Does anyone know a work around or a way to convert .prt files, made while operating in Windows 8.1, compatible with my new Windows 7 workstation? I can retrieve all my pre-W8 files. Thank you!

