I have a Fadal 4020FX with a Fanuc Oi-MC control put into service in January 08 and I have a backlash problem in X. I have already go the machine leveled and gibs adjusted and my backlash does not change. If I am near the left side of the table the backlash is .0007 towards the middle it gets better and over to the right I can not find any backlash. It seems to be a gradual progression. Can I do a zone backlash adjustment?