What happened to my camera lens?

I have a digital camera. Its a Canon powershot A620. there is a problem with it, everytime I zoom the lens there is a buzzing sound.Well actually there is a buzzing sound in all camera but this is diffrent! the buzzing sound is louder than the usual.I used it yesterday but the sound of the zoom is still normal. but when my sister barrowed it and returned it in the afternoon, the sound was a little louder.... so can u tell me what to do with my camera?
(if there is a professional camera repairman reading this pls give me professional help).

I didn't broke the Camera!

It so happens that my s2pd sister did something to it. they went to a mountain resort not on a beach... :-(

Sounds like someone tried to force the lens back into the body or dropped the camera while turned on. This would damage the motor that runs the zoom and pulls the lens back into the body when you shut off the camera. Do you see any scratches on the front or side of the lens housing? If so then you sister probably damaged it but does not want to own up to it. You can all the Canon customer support number or try a local Canon store for service. You will probably find that the cost of repair exceeds the cost of a new camera. If that is the case buy a new camera and don't lend it to your sister again. Let her brake her own camera.

You broke it.

You had better hope is it still under warrenty .. take it back where you got it!

And the moral is.....never lend things to your sister ever again ;-)

Hope she didnt take it to the beach and get sand in the zoom!