Hey, Teabubblez, are you still having the cap lock problem? Looks like there were not very many "answers" posted so either that fixed it or no one else has anything to offer.
This sounds like it may not even be a software problem to me so the software fix approach may not be anything more than an attempt to sell something. If you backup your data regularly, you could try doing a factory reload. If it is a software problem, this would fix it and you buy nothing. On the other hand, if the problem is still there, then you know that you likely need a new kb (compromised matrix) and you can get that on ebay. Good Luck.
I don't have a solution, but I have the same problem. My capslock likes to change windows, as if it's doing a ctrl+tab or alt+tab function. It's a bit of a pain. Sorry no answer, just bumping the thread really.