Boot Camp Asistant problem

[difredencial]

I'm on my MacBook and I want to install windows XP (I have an original copy of the CD). On my Macbook I have already installed Mac OS and Ubuntu. I was going to follow the boot camp assistant guide to install windows XP. The problem appears when I open the Boot Camp assistant, I click on continue and a message appears saying that:

The startup disk cannot be partitioned or restored to a single partition.
The startup disk must be formatted as single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistand for installing Windows.

What can I do? I don't understand the problem because my Mac OS partition is already Extended(Journaled).

So, is there any other way to install windows without using boot camp assistant (i mean make a new partition and then put the windows cd and so on) ?

 

[nospamboz]

Look at:

http://refit.sourceforge.net/

Be sure to read their "Myths and Facts".

If you've got Leopard, the new Disk Utility has an interactive
way to non-destructively resize Volumes, including adding and
deleting volumes. Maybe that will help.