I have a canon rebel xs. when i take pictures outside on a sunny day the pictures will white out or overexpose. the automatic setting is NOT correcting itself. i don't know why this is happening. we've had this problem since we bought the camera. my husband can go in manually when he's taking pictures and tweak the white balance/aperture, but shouldn't the automatic settings do it on their own?? anyone have any ideas as to why this could be happening.