Used my A40 recently to take some indoor pictures and wanted the background to come out better illuminated so I used the Slow Synchro Flash instead of normal flash. It lit the background up better but when I downloaded the pictures to my pc, I noticed the pictures had a large purple spot near the bottom right hand corner. I then took some pictures using the normal flash the purple spots had disappeared. Has anyone else seen these or am I the only one? I only have the camera a few weeks and it has been looked after and used properly. Do I need to download this patch everyone is talking about for the focusing? I now stick to the single point focus as the camera always locks on the wrong part of the picture if I use the three point focus.