System BOMB error #85 for mac OS

A google search gave me this:

" Can anyone help me? I tryed to boot up my MacIntosh and it comes up

> with the error "couldn't load MBDF" I realize this is bomb number 85,

> but how do you correct this?

> Any help would be appreciated.

It's a good-news error. It means that your computer is told to load a

virus, but it is not there anymore.

This is typically the error that occurs when a trace of the MBDF virus

is on your disk, but the infected file is gone. Run any viruskiller,

and your problem is solved.

Don't forget to clean your floppy's as well.

If you toast your own cd's, check them and throw away the infected ones."