When I insert pearl into my ds (after inserting action replay) it says the game is unkown (my game may be a copy), so I saved the game and entered cheats for it, now when I enter the game it reconises the game and shows cheats, but when I go to use the cheat and then press start all I get is a white screen. I havn't gone a bought a dodgey AR have I?

Video Game Consoles & Games - Datel - Action Replay for Nintendo DS