hello, first of all sorry for my bad english

im noob as hell and i'm asking for help
So...
i just burned the bt5 into a dvd and now, i just selected the boot option form Cd romdrive
and.. then...
screen turns to black... then...

ISOLINUX 3.63 Debian-2008-07-15 Copyright (c) 1994-2008 H. Peter Anvin
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
Unknown keyboard in configuration file.
boot:_

i want to boot bt5 from cd
ok.... here's some information of my Notebook
, i have windows 7 ultimate 32 bits
my BIOS is InsideH2o Version CCB.03.61.01F.02
procesor: AMD E-350 Processor (2CPUs), <wave> 1.6Ghz
memory RAM 2048MB

is there any way to continue to the next step by typing a comand or something?

i'll thank any help,