1. download latest fglrx driver (8.42.3). Remember where you place it.
2. uninstall your old driver (you can do that via yast->software management), then reboot/restart
3. openSUSE will automatically boot into init 2 (shell). Login as root, type the password.
4. go to ur driver directory.
5. type: 'sh ati-driver-installer-8.42.3-x86.x86_64.run'
6. type: 'aticonfig --initial' (optional--u don't need this line if u use recent fglrx version)