Grub booting from CD

[Bruno Wolff III]

On Mon, Apr 17, 2006 at 18:42:42 +0530,
  Niklaus <niklaus at gmail.com> wrote:
> Hi,
>  I have a bootable CD and normal ISO9660 data CD , both has linux on it.
>  I don't have the BIOS password and hence cannot change the bios
> startup options.

Have you tried pulling the battery?
The procedure is to pull the power, pop out the battery, either short a
special discharge jumper or wait for around 10 minutes, then put things
back together.
This should put your BIOS configuration back to the factory default.