64bit install dvd rom driver not found

Hi, im trying to install vista 64bit version on an Intel 64bit + Asus motherboard. I reboot and start from dvd.. it works.. loading files... but when it gets the first window prompting for Languaje and you select it, then comes an error like this: "can't find driver for dvd/cd driver , select location .. " but you can't select anythyng and it comes to a infinite loop of the same error.
¿any idea?, i will try with 32 bit to see if it works fine.