Configure file? Is this on a NGC machine? Only NGC require configuration files. Just saying. If Haas replaced the motor,amp,cable, prox switches and none of these fixed the issue. The issue could very well be in your cam box. Was the I/O ever changed? What software is in this machine? Also Depending on the year this machine was built the Haas service techs can now download the original parameters for this machine from Haas. Also if you contact the factory they should be able to email you the original parameter files to this machine. Also it sounds like if they were wanting to change Gear box the customer was fighting them since he was afraid to pay such a high price on a part. All this down time and aggravation probably has come to the cost of what a new cambox would be.. just throwing that out there as well. Either way ask the factory for the original parameter file. They should email it to you, but if you don't know what you're doing you will end up shutting off the options when reloading parameters. So you will have ask for all the option codes to turn on all your added features as well. Hope this helps.