Pokemon HG/SS Problem

When i open my Ds it works when i make my character then when i almost start my adventure the screen turns black and freezes but the music is playing normally please help! I have a r4 SDHC v1.17b with Pokemon HG/SS USA version Thank you

Maybe I'm doing a good deeds by doing this ;D.....click and read ???.... http://forum.romulation.net/index.php?topic=36094.0