Bug-grub: Promise Ultra33 issues

[pa]

Greetings,

System was as follows;
PII in an Asus P2B
Disk 1 at hda
Disk 2 at hdb
CD at hdc
Disk 3 at hdd

Installed Redhat 7.2 on /dev/hda5 and grub on the MBR of disk 1. Joy all
around.:)

System currently;
PII in an Asus
Promise Ultra33
Disk 1 at hda
CD at hdc
Disk 2 at hde
Disk 3 at hdg
The last 2 drives hanging off of the Promise Ultra33.

No go with Grub at that point, instead of the Grub menu at boot time
just a blinking underscore. If I enter the proper commands with a Grub
boot floppy, I can boot any of the systems. 

I booted the mini system I keep on hda2 that has the Grub config file on
it. Ran Grub, and entered this command;

grub> setup (hd0)

and was greeted with this;

Error 12; Invalid device requested

Am I snoozing here or is there an issue with the Promise Ultra33
adaptor?

Thanks in advance.

Peter