I experienced a problem today where my 770 would stop mid-program and display a Joint 2 Following Error. This happened twice, once on two different programs. I am running PathPilot 2.0. The spindle speed was set for 10,000 RPM. From what I was able to find online, other Joint Errors have been fixed by reducing spindle speed if it was set at the maximum. I am not sure if the same applies here. I am not familiar with this error and have not been able to find any information about it online. I'm hoping someone on the forum might have some experience with this.