Usually that's a BIOS message related with the NIC and the ability to boot from network. You can disable that setting in BIOS. How ? Read the BIOS settings in the Asus A7N8X manual.
Trying to unweave, unwind, unravel
And piece together the past and the future,
T. S. Eliot
This is weird. Im running an Asus A7N8X 2.0 with an AMD 2500 CPU. Ive never had any problems with the combination. Tonight I tryed to install Microsoft Train Sim and at the end it told me to reboot. I did and my 3 Com NIC card (built in) launched some sort of PC Management program. I didnt get a chance to write down its exact name yet. Cuz I was finally able to boot into XP. I will do a system restore after I post this to see if I can go back a few days. But during the time that it (took over) the boot process, it was looking for a Mac Address and it was showing a what looked like a DOS command with the spinning | . Im almost afraid to reboot for fear of it not wanting to boot back up. I did do an uninstall of the Train Sim and I do have a 3com diagnostic program showing up on my list of installed programs. Not sure if I really need it and Im wondering if that may be part of the problem.