Samsung Q1 Trackpoint Keyboard: Repair?

[elray]

I like this keyboard better, at times, than the M4 and Travel keyboards.
But it isn't built to Thinkpad standards.

http://www.tegatech.com.au/reseller/ima ... layout.jpg

The left mouse button is starting to get sticky.

I'm getting ready to take it apart, but I'm not certain that there is anything I can do to improve the button's spring. Anyone here ever delve into this unit? Suggestions?