"The disk in drive D is not formatted" after upgrade to Windows XP

Hi,
I have two hard-drives connected to my computer.
The first (0) has a single partition
The second (1) has a primary partition and an extended partition containing
two logical drives.

The first logical drive on the second disk is a FAT32 drive which I know as
drive D.

I used to have Windows 98 installed on the first drive on a FAT32 partition
and I could use drive D no problem.

I just installed Windows XP onto the first drive and reformatted the first
drive to NTFS. I did not touch drive D. Now drive D is not accessible.
Using the Disk Management admin tool I can see the partitions and it has
correctly assigned drive D, but when I try to use drive D, either from
windows explorer or using the Disk Management tool it claims that "The disk
in drive D is not formatted. Do you want to format it now".

To check, I rebooted from the Windows 98 CD and the content of drive D
appears fine (although it now appears as drive C; presumably because the old
drive C (disk 0) is NTFS and hence not readable by Windows 98).


Help. How can I get Windows XP to see the content of drive D?

Thanks,
Huw