Ubuntu Maverick Installation Guide
From cchtml.com
Another Possible Fix
If you already have the newest Catalyst release, there is one more hack you can try to make the watermark go away. Write (or paste) the following commands in the terminal (Applications-> Accessores->Terminal)
cd /etc/init.d/
then create a script which will remove the watermark:
sudo gedit ati.sh
then paste the following:
#!/bin/sh DRIVER=/usr/lib/fglrx/xorg/modules/drivers/fglrx_drv.so for x in $(objdump -d $DRIVER|awk '/call/&&/EnableLogo/{print "\\x"$2"\\x"$3"\\x"$4"\\x"$5"\\x"$6}'); do sed -i "s/$x/\x90\x90\x90\x90\x90/g" $DRIVER done
then, to make it possible to run the script, issue:
sudo chmod +x ati.sh
and, as the last step, add it to autostart:
sudo update-rc.d -f ati.sh start 1 0 6 .
that is it, reboot.
solution posted on ubuntuforums by jniklast and currently only tested on Ubuntu x64. See thread for additional info, and maybe to express your appreciation.