Pixelmon Mod

For some reason, I can't get gameshark to work. I've tried both 6.0.3 and 5.2.0b. 5.2.0b just crashes minecraft every time I try to use the gui. For 6.0.3, it doesn't even show up and I can't for the life of me can't get it to work. All I can do is reset the config but that is it. ANy help would be great.

Hello, which version of pixelmon and forge are you using ?
Its on server or solo side ?

EDIT : After test, you need to enable Gameshark in the config file of your game to make it work with latest version !