[lubuntu] graphics card problem

hi ive installed ubuntu 12-04 on a hp envy sleekbook 6 everything seems to work fine apart from the amd graphics card ive downloaded a driver from support page but i still get a amd watermark in the bottom right hand of screen saying amd unsupported hardware there is one updated driver i cant download keep getting an error message any ideas ??this is the error message if that helps Sorry, the installation of this driver failed.

Please have a look at the log file for details: /var/log/jockey.log but i cant find where to look at this