Got my Y and Z axis done so now I am back to trying the Pod. Really want this to work now.

Latest version of Mach .041, Plugin .038 and Pod Firmware 2014
First thing is slaving is now working like a dream. YAY!!!!
Everything else is still the same so the fix must have come about through software updates.
One thing that has come up and only happens when on the "Tool Path" screen.
The out put starts to stutter. Change to any other screen and it smoothes right out again.
Any ideas on this one?