Hi. I just got this camera (CP S1) and a 1GB Sandisk Ultra II a week ago for my fiance. Worked okay (light usage) until yesterday. Turning the camera on without a card results in "This card cannot be used." Turning the camera on with a card looks okay, but taking a picture results in the flash/charge light flashing for a few seconds, then "Warning!! This card cannot be read." Menus can be accessed only when SD card is in the camera and no shot has been taken. Menu items are unusual - black text with no cursor indicating which item is selected. However, they seem to function. Formatting card looks okay, then taking a shot works, then pressing Review button causes the screen to go black (still on, though) and require removing the battery to turn it off. I.e. it's locked up at this point. Calling Nikon just asked me to (a) reset defaults (nothing different), then (b) format the card, which I did with above results. They said return it. Before I do, are there any tricks or advice as to what could have happened? I'm puzzled. I've got an N90, D70, CP950, CP4300, and never had weird problems like this. I thought it might be the SD card installed backwards, but nope -- won't fit that way. She's used it a couple times to take maybe 30 shots. Until yesterday and it was dead. She said something else about the screen looking "split, or double" but I can't duplicate that or figure out what she saw. Thanks!