Ali,
 Definitely post at VCF.  Hargle (Jeff) is usually lurking around.
 Krille has been active in the development of the newer BIOS versions
 and might be able to lend some insight.
 I have an ancient Rev-1 XT-IDE that I use regularly, but that BIOS is
 ancient so I have no experience with the error that you are seeing.
 Mike 
Thanks Mike. I already started a thread over at VCF. Hopefully, the hive mind can help me
figure it out.
-Ali