"GRUB loading" problem with AMD64 install

[Ryan Verner <ryan.verner@gmail.com>]

Hi,

Having a strange problem trying to install Debian AMD64 (downloaded
the latest CD).  I run through the normal installation, partition my
drive (79.5MB ext3 /, 512MB swap), all goes well, I reboot and GRUB
hangs at "GRUB loading, please wait...".

I've checked /boot/grub/menu.lst and it looks fine to me.

The machine has two hard drives; 80G hda (hda1, 80G NTFS WinXP), and
80G hdb (partitioned as above, hda1/hda2).  Grub is installing itself
onto /dev/hda, and I've even booted the CD into rescue mode, mounted
/, chrooted, ran grub-install, and it makes absolutely no difference.

When I tried to install ubuntu amd64, I ran into this exact same
problem, but for some strange reason on every 2nd identical install
grub would install perfectly.  This doesn't occur in this case.

The system is an Athlon64 3000+, on an ASUS K8V SE Deluxe motherboard.
 hda is a Seagate, hdb is a Western Digital.

Any ideas?  Known issue?

Thanks,

Ryan