So without knowing all the details of the ver 4, I installed it. After running I got the GRBL error. So I un-installed it and put the old version back on. The big buttons are now blank. No idea what they should be now. So I un-installed everything again, rebooted and tried again. Still, the big buttons are blank. I would do a system restore, but I don’t have that option on this windows 10 machine. I did not have backup set up so there is no way to go back in time. I have tried everything and still have blank buttons. Any suggestions?