New Kernel Hangs-up Booting

[Joseph Abrahams]

I recently installed redhat 9.0.  After letting the automatic updater
install kernel 2.4.20-31.9 on top of the existing 2.4.20-8, I've
experienced problems booting.  Grub now has four entries (two for
2.4.20-8 and two for 2.4.20-31.9).  The old kernel still boots fine, but
if I boot from 2.4.20-31.9 it gets to "hde: attached ide-disk drive" and
won't go any farther.

My coputer is a pentium4 originally with windows XP on a SATA drive.  I
installed redhat on an new ultra ata/100 drive.  I noticed during
installation that the installed couldn't see my SATA drive, but
everything worked fine until inatalling the new kernel.

Thanks for help,
Joseph