Please help! What could cause my D2X to suddenly miss focus... I think it would be called backfocus, when I focus on a far object and something nearer is in focus? It is very severe, and as I said, very sudden. Noticed it first on Wednesday... used it in the morning and all was well. Pulled it out in the afternoon, and it would not focus with either my 70-200 or 17-55. I checked the focus modes, focus points, focus areas, tried cleaning the contacts. Is there anything else I might be missing to check? I'm tripping because I need this camera in a few weeks for a wedding! Thanks!