I'm really hoping someone can help me with this. I should be able to control the flash output through my Canon 60D, and I'm sure at one point, I could. Now, though, when I turn the flash on, the "M" is blinking and I have to make changes on the flash itself. I've taken the batteries out, and that didn't help. It's so much easier through the camera. Have I missed something? Have I done something wrong?