Macbook Touchpad Problem

[M@lew]

My Macbook touchpad has recently started making a very odd clicking sound whenever I lightly touch or click with it. It's almost if it's "popping" back into place. I've taken out the battery of my Macbook and had a look around and nothing seems to be wrong, but I have a feeling it might be because a screw needs tightening. Has anyone else had this problem and know the solution?

[UPDATE] This is temporarily fixed (for about 5 minutes) by blowing really hard under the touchpad.

 

[grum]

I've had the same problem, very annoying - I love my macbook otherwise. I would love to sort it out but I suspect its not a bad enough problem to take it to an apple store to fix.