THRUSH

I did a quick circuit of the old cemetery this afternoon in between catching up on things I should have done earlier in the week, had I not been fighting my computer. I think I've just about wrestled it into submission but it's still doing something I just can't get to the bottom of. However, it's usable and perhaps a lightbulb will go on in my head and illuminate the answer sometime. Google and the various Apple support forums (fora?) do not help.