I am new to the cnc world. I have a china zone cnc . I have been using it for about 2 mos. I went to my shop this morning and went to run a job on the cnc and mach 3 will not respond to any command. The mach 3 program just locks up and nothing happens. I can not find out what is wrong. Maybe someone here on the fourm has had this issue and can help me. Thank you all in advance for any help you pass on.

Dennis Killian