If your Vx520 terminal is returning back to the root menu after a brief period of inactivity follow these instructions to adjust the VMAC Idle timeout setting to 0 and lock the gift and loyalty main menu in place. NOTE: By default when a new Vx520 terminal is downloaded the VMAC Idle Timeout is set to 0, which means the terminal is configured to remain on the gift/loyalty application main menu screen. The recommended value for this setting is 0.