I just flashed my MSI BX Master to the 5.4 bios tonight, on my Celeron 566@850 Mhz machine running Win ME, heres how I, I made a barebones boot disk,by taking a formatted floppy, went to C:/Windows/Command/EBD folder and copied Command.com and IO Sys files to the floppy. Downloaded the 5.4 bios file from MSI. Unzipped the file to the floppy. Left floppy in the machine and rebooted, it booted up to the flash utility, with the imj file already
entered, waited a couple seconds, and it automatically started and completed the bios flash. Removed floppy,
re-booted, went into bios and re-entered the overclock info as when it first booted up, it booted to default 566 mhz. After re-entering the bios info, it re-booted with new Bios indicated, and at 850 Mhz. This is the first time I have up dated a motherboard bios as I have been reluctant to try it, shoot no pain, easy as pie. Radarman