Bob

Of course I don't have the software and am just living vicariously through you on this one. Since I have the 500mm I have some thoughts and these might be obvious to you, I know it is easy for me to overlook the easy stuff. On the 500mm I am sure you turned IS off. It also has the switch that changes from close distance to long. I would probably use the one that does the whole range but I wonder if this option creates a problem. There is the switch that saves your focus point; I would assume you had it turned off. The AF stop buttons on the lens, it’s been a while I do not remember if the 7D had the option or not to program theses, I would think if it does it should be set to AF stop which is default. In the 7D's settings for the AF system I would make sure it is set to the original default, not an expanded point option or something similar. Make sure your CPL is not in the lens. Lens hood on to keep stray light out.

I doubt it is your camera or lens, since you are using them now and they work fine.

I know these are obvious things, but if all the variables are removed from your equipment then the software may be the problem.

I am really hoping this one works out Bob. I like the idea of clicking the mouse and letting technology calibrate the camera. I think it is silly in today’s world of technology we buy an $8000 camera and lens set up and we have to calibrate it with cereal boxes, yardsticks, plumb bobs and tape measures.