powerbook g4 space bar acting funny...?

[Xero]

the spacebar on my powerbook seems less responsive than usual, or a little "sticky" even tho im very peticular about taking good care of it [e.g no food or drinks near/ above it]. im just wondering if anyone knows an easy way to pop the spacebar off without any potential damage. thanks!

EDIT: ill search the forums for something like this more thoroughly and will delete this thread if i find an answer before i get one here.

[MrMacMan]

Does it stick like down or just a little hard to get back up?

[Xero]

it doesnt stick down, it just feels a little harder and slower when pressing it down, peticularily on the left side, over the left most white, square-ish support that can be seen through the space bar.