Ok so now Mach3 is reset.! . . . Are the Motors Locked.?

Can you post your Mach3 XML file so I can see how you have Mach3 setup. You'll find the profile in Mach3 folder unde the same name as the profile your starting Mach3 up with ie: Machmill and it will end with XML.

Zip it up before posting else forum software won't let you post it.