Several companies who manufacture digital cameras have OCT 27 2005
Several companies who manufacture digital cameras have issued "silent recalls" due to a faulty chip distorts photos when it fails. Sony, Canon, Nikon, Olympus, and others are affected.
Digital Photography Review has more; here's the Nikon D2H & D70 advisory. (A "silent recall" isn't an official recall...the companies are only repairing items in which the faulty chips fail.)