I got Guitar Hero 3 for Christmas without a guitar. I had the previous two for PS2 and got this on for the Xbox 360. I also have Rock Band for the 360. I found out much to my dismay that my Rock Band guitar is not compatible with Guitar Hero 3. After some investigation, it appears to be intentional on Activision/RedOctane’s part since Harmonix made the GH guitars work for Rock Band. Does anyone know if there’s a way to fix this? If not, Guitar Hero 3 is on its way back to GameStop and I’m getting BioShock or Mass Effect.