I'm running Win7 and Mach3. On boot up and several program runs I'm able to use the onscreen pendant or keyboard to move. I can also enter commands in the MDI screen. Then what seems to be random but happening much too frequently Mach won't move. I can change screens but when I try to move the DRO doesn't change nor do the motors move. If I look on the Diagnostics tab none of the numbers are changing which seems odd.

This is a system that has been running for a few years so I'm at a loss as to why this keeps happening. Unfortunately it always seems to happen at the worst time like now when I'm trying to run a 2nd side job so I really don't want to close and restart Mach.

How can I check if this is a driver issue and worse if it is what can I do?

Are there any other tricks to debug this issue?