I have just recently purchased my ms-121 keyboard and mouse combo. They are really great and look amazing however, I've found that the "L" key on the keyboard is very inconsistent. Sometimes you press it and it doesn't register, sometimes it does what it's supposed to do and sometimes it type "L" multiple times! This has been happening since I've plugged it in to my pc. I've tried other USB ports but, same result... I know I'm most likely just going to have to return it and get a replacement but, I was just wondering if I could somehow fix it? Thanks!