I just installed SigmaStudio Version 3.13 Build 1, Rev 1614 on a Windows 7 Professional 64 bit machine.
I did the simple AD1940 tutorial, and saved the project.
Upon opening the project I get this error:
Error reading graph from a file
Font 'Century Gothic' does not support style 'Regular'
Century Gothic font IS installed on my machine.
Any ideas what caused this?