laaaarge up Kabyl,
(many) thanks to your modded A7Sv302AS bios, i could finally manage to test a really good dual boot (asus A7SN).
this works great whith ideneb v1.3.
unfortunatly, everytime i boot back on the windows system, xp try to re-install the 2 IDE standard drivers as the controllers are not recognized anymore !
i can see a yellow “!” on each IDE canal in the hardware manager (not sure this is the term in english, in french it’s called “gestionnaire de peripheriques”).
anytime windows boot, it tries to re-install those 2 items but fails whith a message error saying that :
“Une erreur s’est produite lors de l’installation de ce peripherique” and “Le pilote n’est pas conçu pour cette plate-forme”
which i try to translate as : “an error occurs while installing, the driver was not made for this OS/system”.
any solution would be greatly appreciated

here’s the link to the origial bios, hopping this could save time :
http://dlsvr04.asus.com/pub/ASUS/nb/A7S/A7Sv302AS.zipthanks in advance for your help
DuBmastah
YEEEEEE-HA !
found the solution by myself :
1) just enter the modded bios
2) switch the IDE settings back to "enhanced"
3) no more error under win xp
4) osx86 still working (so far) !!!
thanks kabyl, u're GREAT !
:-)