Hi,
I'd suspect under-speed as well..... Assuming that you are actually measuring two legs of 65V, and not just assuming that that is the case. The AVR may be hooked up incorrectly, as it probably needs 120V as an input for measuring, so the input of the AVR should only be hooked across one leg, not across both legs. Maybe some pics would be helpful.
Steve
P.S.
Quinn was getting frustrated with various things.........