Black screen of death on Live KDE 11.2

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http://forums.opensuse.org – I make a OpenSuSE 11.2 KDE live cd and a DVD.. on the DVD right after installation the system couldn't boot, only blank screen appear. then I try the live cd, but right after the grub loader, after it says "loading kernel" and show the loading progress under the SuSE logo it just show me a blank screen... Now I read the topic that says there are troubles with ATI cards, and I use ATI.. and I try in the GRUB boot option to write "vga=0xf06".. but maybe I get this wrong? is that what should I do? (Distributions)