Eric Hatfield

Thanks. I did try that, but only partial success.

I have recently downloaded Dia because I wanted to do some simple organisational diagrams. I use a Mac running Catalina. The first time I used it, it worked perfectly. I produced the diagram I wanted , saved it and printed it out. All good. But then today I went back to modify the diagram and I found: When I opened the saved version it was blank. When I tried to open a second version of the file I got an error message saying Dia wasn't open. When I tried to close Dia down I got the same error message....