I bought my daughters the gameboy advanced for xmas, and they got scooby doo unmasked. We get through the first two stages but only get two clues and get into the velma clue solver, answer the two clues correctly but can't solve the puzzle. I have NO CLUE how to move on to any other parts of the game, and we've been over it a billion times, what are we doing wrong? is there something wrong with the game?