I would try installing a new battery to see if that solves the problem. If it does not, then you will know the problem lies with the camera.
HELP!! I have a three year old Canon EOS Rebel XTi. Recently I tried to take a photo, and after snapping the shot was greeted with a message in the display screen that read: "Err99" The instructions said to "Turn the power switch off and on, and/or reinstall the battery." I have done this repeatedly with no change in my ability to take photos. What is going on, since I waited so long to purchase an upscale digital 35mm camera and now have this problem. Is this a common problem with this model of camera? I called a camera store in OKC and was told they could fix it but it would cost about $250. This is ridiculous!! I thought Canon sold a good quality product. I am thinking I should stayed with my Minolta SRT101. Please help as I'm going on a trip the first week of September and wanted to take the Canon with me (along with my Nikon Cool-Pix).
Thank you, Charles Baumann