Hi I'm new so wasn't too sure where to post this. My Canon 40D was accidentally knocked off a table a few days ago (stupid accident; it was attached to my laptop and someone grabbed the laptop) and it fell hard enough for my lens cap to go flying. I took a few test shots afterwards and everything seems fine but I'm not sure if it has damage anything internally (like the sensor). I have never dropped it before. There is no obvious signs of trama but I'm not sure what other problems I should look for. Thank god I have a full 4 year warranty on this baby.