thanks, ran both of those but apparently i did not do the uninstall correctly, because the installation is not working and Ubuntu still detects an existing fglrx driver.
this is the /usr/share/ati/fglrx-install.log
usr/sbin/ -type f | xargs chmod a+x
# set exec bit on scripts
find lib etc debian -name "*.sh" -type f | xargs chmod +x
# set the permissions on the pxpress scripts
chmod 744 debian/pxpress/switch*
dh build
make: dh: Command not found
make: *** [build] Error 127
dpkg-buildpackage: error: debian/rules build gave error exit status 2
[Error] Generate Package - error generating package : Ubuntu/natty
any ideas?