I lent a friend my 40D and all of my custom functions were reset to default. I think I got everything back to normal with one exception. The ISO reading, as opposed to 100, 200, 400, ect. instead reads Auto, 2oo, 4oo, ect. I have changed every menu option I can think of but the problem persists. I'll be shooting the Blue Angles tomorrow afternoon and need my regular ISO settings! Help??