Check it out guys and see if you can find anything different with it. It's a shame Asus doesn't let us know what's new/different in their new BIOS releases.
URL: ftp://ftp.asustek.de/pub/ASUSCOM/BIOS/Socket_478/INTEL_Chipset/i845d/P4B266/
URL: ftp://ftp.asustek.de/pub/ASUSCOM/BIOS/Socket_478/INTEL_Chipset/i845d/P4B266/