Hi, I’m trying to learn Grasshopper but I’m failing at my first attempt. The Grasshopper window is not displaying like it should be displayed, and the tool bar is disappearing.
I see you are running OS X 10.9.5 - a version of OS X (now called “macOS”) that is now 4 years old. We do not think we will be able to get Grasshopper for Mac to work on any version of macOS before OS X El Capitan (10.11). Please update to the latest version of macOS - free and relatively easy - and the issue you are seeing should go away.