just setup new 440 and endless troubles. bad usb cable, mouse button sticks, had to tap many holes to get screws to fit enclosure. Made 2 calls to support and 24 hours later no responce so I thought i would try forum. I power on 440, press reset. then Ref xyz. Z goes well but x and y do not. seems limit switches dont work but when I test switches they work fine. Any thoughts where to check?