Thanks for getting back to me, this will really be helpful to other ATi users. If you install AV Linux on this machine you will need to make a change to prevent this from happening every time you boot. It requires you change the /etc/modprobe.d/radeon-kms.conf file like this:
Open the Root Terminal from the Accessories menu and enter your Root password, then:
This will open the configuration file in the gedit text editor, change the existing line 'options radeon modeset=1' to 'options radeon modeset=0' (without the quotes). Then Save the file in gedit.