This is my first time trying Knoppix. I tried searching for posts about my problem but was unsuccessful.

Here's the problem:

I load Knoppix and everything seems to work fine (I am trying to use Knoppix because Windows won't boot up). The start up sound plays and after a few seconds of having a blinking ursor on the command prompt screen, the screen goes black. I tried Knoppix on another laptop and the part where it goes black is when the Knoppix desktop should appear. I have an ATI Radeon Mobility graphics card.

Please help me solve this problem.