Hi Alan,
That is just it. It is set to "Today", but every morning I have to set it to "Today" again because it has added all yesterdays aircraft to all the aircraft since midnight.
We only have about 100 aircraft a day, 40 or so before 9AM, but at 9AM My Log shows 140 aircraft.
I the click on "Today" and select "Today again and the log returns to 40.