I was having a similar problem: There was an annoying "click" noise when I was typing, and eventually I deduced it is because there are only TWO feet on the keyboard, and the center is unsupported, so it would bow just a bit under my slightly-aggressive-active style of typing. The simple solution was to use THREE of those hardware store bumpers that I had around, originally included with a picture frame so as not to scuff the wall. Only problem now is that it is ever so slightly higher than the Magic Track Pad buttressed next to it with a cool Magic Wand. Can live with it, but might get around to shaving them a bit later. Who cares...I'm happily typing away; furiously fast, of course!