sarge iso grub errors

[Rob Benton <rob.benton@conwaycorp.net>]

I searched for any existing bugs matching this but I couldn't find any.

Here's what I've found.  Using a sarge iso from 2 weeks ago and an iso 
dated today I've run into problems trying to boot from the new install.  
Using d-i to partition a new slave drive and then installing grub 
(either from d-i or booting from floppy and using a grub shell) results 
in an unbootable partition with just a "GRUB " prompt.

I know it's not the HD b/c I RMA'd it last week and just got a fresh one 
today.  That and I was able to install from a woody cd and boot into 
grub.  What do you think the problem could be here?

Seagate Barracuda 40 GB ST340014A (slave hdb)