Thanks for the reply Jim C. If that's the case, my 7D "back-focuses" alot!! But I never thought anything of it. I usually press the "central focus" button on the 4-way, and recompose the shot. If the image I want to focus on is really small, I have to use manual focus for best results. Can't say if my Canon Digital Rebel is this way, because I use the Minolta far greater.:-)
It sounds like one of those things that's not so noticeable until someone points it out, and then you start to notice it all the time. :sad:
I can see where it would be a problem when shooting quickly is a need. I will pay more attention to see if mine is constantly back focusing or not.