WE have not experienced any Static related issues on our drill machines but have however had numerous problems on the older Advanced control routers. Our routers are all earth grounded to try to prevent this from happening. The Hitachis are equipped with a function that matches the program hit count with the actual hit count. This message should catch a missed hole. I would suggest attempting to "trick" the machine by intentionally missing a hole. The next area is the download. The download will move information in blocks to the machine. The missing hit could be at the end/beginning of the block break. If the program is wrong, the machine will NOT recognize the missing hole. I have had good luck with contacting the Hitachi Representative with issues that I can't figure out. Good luck Andy Armitage ______________________________ Reply Separator _________________________________ Subject: Re: [TECHNET] missing hole defects Author: "David Hoover" <[log in to unmask]> at SMTPLINK-HADCO