I recently purchased my Canon 400D and it does not "beep" .....This may be a blessing to some, but this indicates a problem to me ...In the menu the beep is set to the "on" position ...I have also tried setting the AF to all 3 different settings and still nothing ....I have also tried doing a timed photo using the timer , and STILL no beep .....Hopefully this is just user error ....Any idea's ??....Thanks, Jim