[fptex] Trouble setting up windvi

[Guy Worthington]

I'm having trouble displaying the following plain tex file:

%--------------------------------------------------
\input rotate  % Tomas Rokicki's rotate package

LINE ONE

\newbox\MyBox \setbox\MyBox=\hbox{ROTATE} \rotl\MyBox

LINE TWO

\bye
%--------------------------------------------------

I've gs6.50 installed, and I've modified config.ps as follows:

% Default resolution of this device, in dots per inch.
D 360% D 600
X 360% X 600
Y 360% Y 600

% Metafont mode.
M epstylus% ljfour

What other configuration settings are required?