Assembly Instructions and Support Assembly instructions for tracks purchased after September, 2019Assembly instructions for tracks purchased after November, 2018Assembly instructions for tracks purchased between November, 2012 & November, 2018Assembly instructions for tracks purchased before November, 2012USB Drivers for Timers with 8 pin ‘Ethernet’ type cables can be downloaded from http://ww1.microchip.com/download/en/DeviceDocMCP2201%20Windows%20Driver%2021-02-22.zipUSB drivers for Timers with 10 pin flat ribbon cables and single lane test timers can be downloaded from http://www.ftdichip.com/Drivers/VCP.htmWindows 10: If you have upgraded to a new Windows 10 computer, you may need a newer version of the DMRM. Please contact us at admin@derbymagic.com with the version of the software you have and the name of the person that originally purchased it