I'm a newby and looking for help. Just bought a used Gerber Envision 375 and hooked it up and got an error message (code 29 - y axis overload) Gerber tech person diagnosed over the phone and indicated that the circuit boards were bad. I'm not sure but I didnt like the cost they were quoting and I would like to objectively determine if the board or boards are in fact the problem. Does anybody have any options? or cheeper alternatives to remedying my problem other than dealing direct with Gerber?