I was working on my computer tonight when it started getting very slow.
I clicked on Home on the toolbar and it said it could not be found and
was not associated with ... something. I saved my data and then
rebooted. I received the same error as the original poster: Error 22. I
performed the following:

Booted to LiveCD,
sudo grub,
find /grub/stage1
It is located at hd0,0.

I found some other posts about this and followed these instructions:

sudo grub
find /grub/stage1


sudo grub
grub> root (hd0,0)
==
checking if "/boot/grub/stage1" exists ....no
checking if "/grub/stage1" exists... yes
checking if "/grub/stage2" exists... yes
checking if "/grub/e2fs stage1_5 (hd0)"... 16 sectors are embedded
succeeded
running "install /grub/stage1 (hd0) (hd0)1+16 p (hd0,0)/grub/stage2
/grub/menu.lst" ... secceed
done.

grub> setup (hd0)
grub> quit


=====
rebooted... same message .. .Error 22.

I started live cd again and and did a search and it says hd0,0 for
stage1 and stage 2.