I'm using a bought, legit version of Guitar Hero and the controller. When I power on the PS2 with the Guitar contoller in, the Matrix logo shows up, then goes to the PS2 browser. Once there, I'm unable to switch between the memory card and gamedisc. However, if I use a regular controller instead of the Guitar controller, the game loads normally. I'm then able to switch out the controllers.
I'm using firmware 1.88, and I've got a V12 PS2.
Can anyone help?