please help me cos asus wont

i need to update my bios due to issues with my x-fi soundcard.
i have tryed there asus update tool and that wont work.
so am now trying to use afudos. i made a ms-dos startup disk as instructed in there manual added the a fudos utility inserted disk and pressed restart. i came up with a message saying disk I/O error and all that would happen is it would keep coming up again every key i pressed.
if i take the disk out it just boots into windows normally.
i have got my floppy as first boot device so i cant think where im going wrong.
please help me ive been trying for weeks to solve this problem.
i have a8n32 sli deluxe mobo
other than restarting the computer with an ms-dos startup disk in the floppy drive is there any other way of getting into dos using XP?

You duplicated the post....


http://forumz.tomshardware.com/har [...] 33#1064133