When restarting the Raven MTX on a El Capitan or Sierra OSX. The display may not show in the Multitouch App serial number drop Menu.
In order for the Multi touch driver to see the screen.
1. Unplug the USB cable from the computer for 15 seconds.
2. Plug the USB cable back into the computer
3. Open the Multi Touch Platform Application from the Applications folder and be sure the Serial Number is showing in the drop menu.
Note: The Raven MTX comes with an USB A - AY cable. If after replugging the Serial Number still doesn't show up. Double check both ends of the USB AY are plugged directly into the computer.