I have a VM 17 with Cent 6 which I have had a year or 2. When I first got it I had the same problems. I am getting the error pictured below. 192 address 0009:150 history line > main-HDW. I am also having trouble getting home position. We never figured out what the problem was originally but it has been working fine for the last few months. Yesterday it started doing this again. Previously it would happen every now and then. today It is failing I have been working on it all day to try to figure out the problem. I also had an issue today I noticed that when it homed to z it was about .4 inches low? Originally I sent the computer to Sporty Bob and he checked everything and never did find a problem. IT has the single board computer. I tried calling him yesterday and today but no answer. Is he still working on MIlltronics?
Any help would be appreciated. Tomorrow I am going to call Milltronics.