Help! GRUB seems to have overwritten partition table on second WinXP HD

[Trimble, Jason]

I really hope you can help.

I have a Compaq Armada E500 laptop with two hard drives.  Both are
identical IBM 20 Gig Travelstar HDs.  One is in the primary bay, one is
in the mulitbay.  I installed RedHat Linux 7.2 on the primary drive.
Previously I had Windows XP installed on the drive in the multibay
(which was originally done with the drive in the primary bay).  The WXP
drive was configured with a 4 Gig Primary partition and the rest as a
secondary partition (drives C: and E:).  The Linux drive was partitioned
with 3 partitions.  One for /boot, one for / and one for swap.

On to my problem.  I was trying to get GRUB to boot the WXP on the
second drive by trying various things suggested in the Documentation.
One of the things I tried was this:

Map (hd0) (hd1)
Map (hd1) (hd0)
Rootnoverify (hd0,0)
Chainloader +1
Boot

Well that didn't work. I also tried various 'hide' command options.
However, when I tried to put my second HD in the primary slot to boot
back to XP, I found that the drive was no longer recognized.  When I
take a look at the partition table using FDISK I see the exact same
partition table on each drive now.  Almost like the Linux partition
table was overwritten onto the WXP disk.

Any chance you can help me recover this?  I tried to 'unhide' all
partitions, but didn't seem to do anything.

Thanks,

Jason Trimble
address@hidden
Phone: (613)591-5052
Compaq Canada Inc.