While hunting in my favorite 40 acre (empty) field yesterday, I got a good hit in an area that SHOULD produce something. My doo-hicky locked hard in right upper corner, and would not unlock from there when I moved away. I turned my machine off, tried again, with the same result- a lock that was literally, locked. I even tried it a third time, and the result was the same, a non-moving lock. Three times is enough for me, because I am crazy, but not stupid. Any learned thoughts on such behavior? Smart Alec remarks? How about remarks for the good of the Order?