Blue screen of death on mac mini

[susancpv]

Hi. Last night my computer froze up, so I turned off the power to it. When I turned it back on, after the grey apple, a blue screen came up. I can't get it to go to the login page. I have tried this:

"Start your computer holding the ⌘ and S key on your keyboard. When the black screen turns up and the "writing" stops, you will see something like:

-----------------------------------------------------------------------
If you want to make modifications to files:
/sbin/fsck -fy
/sbin/mount -uw /

If you wish to boot the system:
exit

:/ root#
-----------------------------------------------------------------------

Now to check your filesystem, type:

/sbin/fsck -fy

and press the return key on your keyboard and wait for the process to finish. If any errors are found repeat the above mentioned command until you get something like:

** The volume some_name appears to be OK.

(The term "some_name" is just to indicate that I don't know the precise name). Now type:

exit

and hit the return key. Hopefully after some more terminal text your mac will boot into the login screen."

It didn't work. I also tried reinstalling the leopard software, but the blue screen sits there, so that doesn't work.

Any help would be greatly, greatly appreciated.

Susan