First try the easy fix:flip it over and drizzle in some PB Blaster or WD40 from the back side to free up the pawls (they make the clicking sound). If that works blast out the residue with compressed air and drip in some plain 'ol 30w motor oil.
Top
__________________
You know it's going to be a good day when the stem and seatpost come right out.
(looking for a picture and not seeing it? Thank the Photobucket fiasco.PM me and I'll link it up.)