It sounds like you've moved the Corvalis plugin out of it's aircraft package. I believe the Corvalis plugin is designed to live next to the Corvalis ACF. Eg: Once you unzip the corvalis folder DO NOT go into the plugins folder and move things around. As for the BK-117, that's very odd. Gizmo tries to ensure that it resets itself when you change aircraft, there is nothing in it that touches any battery code at all. There are no existing scripts published that touch the battery code. I'd love to test, but I don't have a copy of the 117. I'm wondering if you've moved some other plugins around, if you've done it for the Corvalis you've probably done it for others as well. What, exactly, is in your <XPLANE>/Resources/plugins/ folder? Can you start X-Plane up and post your log.txt here?