Forums on GameSpot and the official Guitar Hero site are getting hit with a number of complaints about faulty Guitar Hero III controllers. Apparently some of the buttons will flake out over time with some controllers. It seems that a lot of gamers suspect that the guitar's detachable neck is to blame.
There's a lot of speculation so far, but no official word from Activision or RedOctane, which is unfortunate. I contacted the company this morning for a comment and they've yet to get back to me. We'll update or do another post once we hear some sort of official word. What about you, have you had any problems? The 360 I demoed with was fine and the Wii guitar had a momentary problem but seems fine again.
Guitar Hero III: Problems with the Detachable Neck [Law of the Game]