We have a hurco vm 1 machine. The winmax screen flickers off then back on, all the lights on the operators panel go on and off during this. We replaced power supply due to the 5 VDC being 4.93 during this. After changing power supply the machine ran with no issues for at least 4 hours. This morning the operator said screen started doing same thing. Anyone seen this happen before? Any suggestions would be greatly appreciated!!