I handful of photos that I took last Sunday had this bar along the bottom of the photo (or the side if held in portrait). These were all shot in jpeg with a shoe mount flash. I've since shot with my camera over the past few days in both raw and jpeg with no issues. I've never had this happen before, so is it an issue with my sensor or my card? I must say I'm a bit nervous that it's my sensor since I've only got 8500 shots on this camera. (side note: I try to always reformat my card after transferring and clearing photos from my disk if that makes a difference.) Thanks for your help and let me know if you guys need more info!