I just picked up a refurbed 7D and ran 2100 shots through it yesterday for an event. I have set it up to use BBF in AV mode. Occasionally when the camera isnt active for a few minutes (not sleep) and I get ready to take a shot, the focus button does nothing. Almost like the camera is in sleep mode and the only way to get it to work again is by hitting the shutter button. As long as I am constantly shooting, it seems fine but when it gets a little break in the action it seems to be non responsive but the viewfinder is still lit. It did it 4-5 times yesterday.
Second thing is the playback button to review images sometimes doesnt work as well. I have to hit it repeatedly to get it to work. Anyone else have this issue? Hoping its a setting somewhere and that I dont have a dud.
Thanks

