I feel like I hijacked this thread. I apologize but it seems to be the same situation. Here are two video clips. The first is while 'clicking', the second without. Poor quality, might need to turn up the volume and the background noise kinda gets amplified in the videos but you will hear the 'clicking'.
Clicking:
http://s67.photobucket.com/albums/h3...rent=Movie.flv
Not clicking:
http://s67.photobucket.com/albums/h3...Movie_0001.flv