Laptop donated to non-profit has been wiped. Trying to install new OS. Screen flashes for a millisecond something about firmware (maybe update?), but it will not boot from the Vista or XP dvd. I can't flash the bios as it won't read the dvd. I have gone into the bios and have the dvd priority boot to no avail. I also connected an external dvd player via usb and same result.