I was wondering if anyone could shed some light on a light leak issue I have with my m4p. I use my camera for street photography, so I walk around with the lens cap off. I also have the camera in a leather half case, which covers the back door. I seem to get a light leak on random frames, from the bottom right hand corner. I figure it can't be the door as the rear of the camera is covered and the sills look in order. Has anyone experienced similar faults or have any remedy suggestions prior to sending it off for a repair?