Compaq Evo N410c Video Driver

Hy Guys!Like 3 days ago I said: I want Linux on my Laptop Compaq Evo N410C. OK! What distribution? Mmmm....Then I said Ubuntu because it seems to be one of the used, but not only, even for the philosophy that follows. Everything went well except for the video driver. Ati Mobility M6. A Blood Bath I've tried everything!!!!! But it seems that's not enough!!!!! So... I'm at your mercy... :)  I hope that your infinite knowledge will enlight my dark way!