Windshield climate vents (defroster)

Anyone experiencing any rattles with their vents on the dash at the windshield? With the temperature changing, I've noticed that my driver side vent is rattling once the inside gets warm and cozy.

Anyone have any ideas on how to address this?

thx

Yes - see post below.

http://www.clubarmada.com/forums/showthread.php?t=9191

Gracias!! I wasn't sure how to get those covers out.