I installed Knoppix to my hard drive along with Win XP. I installed LILO to the MBR and it seems to boot to either properly. When Linux completes the boot I get a Debian login screen asking for my user name and password. I enter "root" (without quotes) for the user name and then when I put the root password in I get a login failure message. When I try to login as "koppix" and use the user password the screen blinks for a moment and returns to the login window. What am I missingt?