CD Shell issues ?

[Sonic]

Hi all, I'm trying my multi boot cd ... and works fine

but today I try it onto an ASUS K8V-MX SE board (all in one motherboard ...) and bios

say: Error to boot on cd (approximative message ...)

With a regular one unattented windows xp setup, no problems ...

Anyone know that ?

Diskmenu (nu2.nu website) is better compatible ?