Woo Hoo! I got it! Out of nowhere, I'm able to play a clean F Major!! This must be the feeling they are trying to simulate when you earn enough points to unlock new songs in Guitar Hero. I feel like a whole new world of music has opened up to me -- songs with the F chord!!

HaHa! Now I'm stuck on B Major. I can get it, but it takes me forever to arrange my fingers. I can't imagine I'll ever be able to get to it quickly in a song. But, if I can master the F, I can do anything!

Thanks again for all of your help :)