iSight autofocus

I've just got my iSight and it is a great bit of kit, but everytime it tries to auto-focus there is a clicking noise.
It's only when focusing and is quite annoying, anyone else experienced this before i take it back to apple?
M

I think that's normal...
you can hear the little motor adjusting the lens position..

Yep it sounds like you are winding a watch and when it sets itself there is a little click....no need to worry