I tried to change the black grub/debian background screen, which I don't know how to do, and when I modified menu.lst to point to the file/splash image it did not work. When I uncommented the old boot/messages and took out what I put in and rebooted, I was given this error:

Graphics file "(hd0,3)/boot/messages" missing, press any key to continue.

And I am taken to the other grub screen that just has text, graphic mode or whatever. I can proceed to enter any OS/kernel but I would like to know how to fix this to get back to the black screen. The messages file is still there.