@Daggersuk
I am not aware that GG does not run under Win32. If I understand you correctly, the program can be started without errors.
Can you explain exactly what happens when you press the button? Some screenshots would be very helpful.


@jpascher
Which GRBL version do you use ?
There are many great features in V1.1 and the communication via USB is different than in V0.9.
That's why GrblGru no longer supports GRBL V0.9. It needs V1.1
If you are already using V1.1, it looks like an error in my program.
Can you send me a sample file so I can see exactly what it is ?
Which controller do you use ?