I just got out my camera to play around with a couple of new techniques that I read about. The shots all have this horrible black line going diagonally from the top center of the frame to the lower left corner. Looking at it on the LCD I thought it may have been a hair or something on the lens. I cleaned the lens and it was still there. I took the lens off and checked it for scratches and didn't find anything. I looked at the mirror and didn't see any marks. I switched out the battery and the SD card. I tried multiple different settings. Nothing made any difference. So clearly it had to be something with the sensor, right? So I put the lens back on and took a shot of my solid white comforter and pulled it up in photoshop. Looks like something is seriously broken and the sensor could stand a good cleaning based on the spots. But, at least in the time that I've had the camera, it has never been dropped or hurt in any way. It's been in a Lowepro camera bag and taken out 3 times to shoot. The comforter picture is below. How screwed am I? I literally just bought this camera (used) exactly a week ago.