MCL crash on 540c, floating pt processor not installed?

[wrmurr2@srv.PacBell.COM (William Murray)]

When I load MCL on a powerbook 540c and evaluate the files to
support Apple events or an eval server, the 540c crashes with
the following error message:

  Floating point coprocessor not installed

and I have to restart.

Does anyone know whats causing this and how to fix it?  Any help
will be greatly appreciated.

  -Thanks,
         Bill