X11 Does not start

Knoppix runs and loads completely, I can use linux as though it was installed when I run knoppix with 'knoppix 2'. However, when I try to run X11, all I see is a blank screen.
I have tried almost every 'cheat code' I could find in the forums.

noapm, noddc, noapci, xmodule=vesa, etc
Knoppix does seem to configure itself properly also. It auto configures my hardware properly.
My hardware:
Intel Pentium 2.6 GHz
ATI Radion 9800 Pro
Running Windows XP

Thanks for any help or suggestions you can offer.

Try "fb800x600" at boot prompt (not "knoppix fb800x600").

Good luck.

Typing "fb800x600" at the boot prompt worked for me. I have the following:

ATI Radeon 9600 pro
P4 2.8GHz, HT enabled
Gigabyte 8IK1100 motherboard

So the question is how to do I configure Knoppix correctly so I can use it at my native 1280x1024 resolution? Do I need a driver?