gcEdit error in Mach4 Problem: When attempting to edit g-code, user receives a gcEdit error. Solution: With the control software closed, open a windows explorer window. In the address bar type %appdata% and press [enter]. It will take you to a folder and you'll see similar files as below: Delete the gcEdit.ini file. Open the control software, load a g-code file and attempt to edit to test. 10734