Grub - Error 21

[General Manager]

Hello All,

I have trying to install Fedora on a two drive system. The boot drive is a 
XP OS. I installed Fedora on Drive 2.
Everytime I reboot I get
  "Grub Loading Stage 1.5"
"Grub Loading.. please wait

ERROR 21

The system stops at this error

The "/boot/grub/device.map" file reads as follows

THis devicemap was generated by anaconda
(fd0)      /dev/fdo
(hd0)     /dev/hda
(hd1)    /dev/hdb

Any help on this matter would be appreciated

Thanks

Wray