RADEON 7000 Ubuntu

Now that you have your Radeon working with the "radeon" driver set in Xorg, it is time to add a little bit of power to the card you may check if hardware rendering is turned on by glxinfo | grep "direct rendering"

If that is all good, the next thing you want to do is sudo, and open your /etc/X11/xorg.conf file and add these...

Section "Device"
Identifier "ATI Technologies, Inc. M9+ 5C63 [Radeon Mobility 9000 (AGP)]"
Driver "radeon"
Option "AGPFastWrite" "yes"
Option "AGPMode" "4"
Option "EnablePageFlip" "on"
Option "ColorTiling" "on"
BusID "PCI:1:0:0"
EndSection

Your card will perform much much better after you restart your Xserver, well perhaps not that much better in 2d but you will see a drastic improvement when it comes to games.