I bought a Hitachi Super Scan supreme 803 21" monitor that I hoped would
work with our Sun Ultra1 workstation. The guy I bought it from used a cable
that went from the Sun 13W3 on the monitor to a VGA plug on the end that
goes into the computer. I had an old 13W3 to 13W3 and used that cable, but
I get an "Invalid Scan Frequency" message on top of a lot of snow when I try
to use it.

Is there anything I can do to use this monitor with my workstation?