hempa wrote:and how do i know if i am using fglrx?
Have a look in /etc/X11/xorg.conf to see if you have Driver "fglrx"
specified in Section "Device"
. Also have a look in /var/log/Xorg.0.log
and do a search for "fglrx" to see if the driver was loaded successfully. Useful commands from the command line are /usr/bin/glxinfo