New Computer with XP will not install Vista

Hello everyone, this is my problem:
I just bought a Dell Inspiron 1525 Laptop, it came with XP Professional but it also has a CD so I can install Vista if I wanted to. So I tried installing Vista using the CD and during the process a window pops up saying: " Windows could not update the computer's boot configuration. Installation cannot proceed."

Does anyone know why I'm getting that message and what can I do solve the issue so I can install Vista?

Thank you in advance,
Ricky

 

http://support.microsoft.com/kb/931697