I'm having difficulty imagining how you twisted the **** back all the way in the first place. When I adjusted my headlamps, I parked the car a ways back in the driveway, and flipped the lights on so you could see the level on the garage door. After that it was as easy as just turning the **** to get to where I wanted. That just seemed like the logical thing to do. I can't understand how you twisted it without noticing the light dropping.
Odd problem indeed, though. Glad you were able to fix it without any ha$$le.