I have an unusual issue I have noticed of late. I shoot twin D200's on photo shoots. These cameras were bought a few years apart but are identical in that they are set up the same way using grips, camera settings, time and all of the other things. BUT I bought new 4 gig cards the other day, formatted them both and noticed that on Large, High, JPEG settings one camera reads 671 available images, the other reads 440. This struck me as odd so I switched the cards with each other (thinking it was a card thing) and got the same readings. Has this happened to you all and if it did, would a master reset fix it? David.