My D200, only a few months, old I recently noticed was front focusing. at first i thought it was just my 50mm 1.4, but it happens with all lenses. Is this a common problem? Its under warranty, and I plan on sending it out as soon as I figure out where I need to send it to. hopefully turn around time is quick with nikon.. It makes me wonder if my camera has been doing this since I got it, being my first digital camera and first autofocus camera, I didnt test it much.