I can't sign into Windows Live while playing games for some reason. I tried running Halo 2 and Viva Pinata on my computer, but they say I need a user profile first, of which I have to press the Home key on my keyboard to use. I tried, but the Home key doesn't work. Its not just my keyboard, I've tried several different keyboards with the same results. Does anyone know what I'm talking about or knows how to fix it?