I am booting from the Live CD. I have tried all kernel parameters and it does not help.
This is what happens:


  1. The Desktop shows up.
  2. ~4 seconds pass.
  3. The screen blanks.
  4. A loading bar screen comes up.
  5. Repeat from 2 to 4.

Why is this happening? I can not directly install Ubuntu yet as I have to verify that my /home content will be safe during the install (I have Debian Lenny installed, currently).