An internal problem has occurred with the V+ software or with the system hardware. It would be appreciated if you would report the error to Adept Application Engineering. Please include the details of the error message and exactly what you were doing at the time the error occurred. To save programs that are in memory you can restart V+ temporarily by pressing Ctrl+G. The robot servos do not function but you can STORE the programs. Then power down the controller and restart the system.