Help - Guitar won't work on Metalica GH game!

[Clartmaster]

Really need some help!

I bought guitar heores 3 and rock band: beatles for my ps3 recently. The guitar came as part of the metallica package.

I started with rock band and the guitar worked perfectly, but it just won't work with the metallica game, nothing.

If anything I thought this would work the other way around. Can anyone advise me what to do?!