Broken Button (not pad)

Hey everyone. I got my MPC1000 a few weeks ago in almost perfect condition - it was cheap, only a few months old, and the guy who sold it to me had barely used it. The only thing wrong is the up arrow button. It works, but it doesn't press in and click like the other buttons. It's not such a terrible problem, but it means I have to push in a weird way and it slows me down a little. Has anyone had this problem? Is there a way to fix it?

Sorry if this is a repeat post - I tried searching for this but I could only find info about broken pads.

Thanks,
jamrod

use a key u know ur not gonna use like the numeric key and swap 'em