ps3 guitar hero dongle

is there something wrong with my PS3?

im playing guitar hero 3 and my guitar is messed up ill play notes, and it wont detect it on the screen and not fall I think its the little USB dongle, because ill play it on my 360 with my Aerosmith guitar, and it works perfectly

Check the connections sure that good if not take it back to Grand (guitar) and buy a new one.

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