Q:
Will Version 1.1 of Diagram run when I upgrade from NEXTSTEP 2.1 to 3.0?
A:
Diagram! 1.1 works fine under NEXTSTEP 3.0. The one caveat is that Diagram! looks at your system font information, and if it becomes confused by what it sees, it will crash on launch. This wasn't a problem under NEXTSTEP 2.x, since there was no easy way for users to change their system font. The NEXTSTEP 3.0 Preferences application does allow users to change this parameter, so we have encountered some difficulties.
You can prevent this problem by opening a shell and typing the following command:
dwrite Diagram NXSystemFonts Helvetica