Lilypond newbie can't compile

[William Zeitler]

I've installed (and uninstalled/reinstalled) the current LilyPond (2.18.2-1) on Windows 7 (with all the latest updates).

From the command line I'm compiling this example:
 

\version "2.18.2"

{ c' c' c' c' }

with this command:

lilypond Untitled.ly

It fails to compile:

Processing `C:/Users/william/Documents/Untitled.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
Layout output to `Untitled.ps'...
Converting to `./Untitled.pdf'...
warning: `(gs -q -dNOSAFER -dDEVICEWIDTHPOINTS=595.28 -dDEVICEHEIGHTPOINTS=841.89 -dCompatibilityLevel=1.4 -dNOPAUSE -dBATCH -r1200 -sDEVICE=pdfwrite -sOutputFile=./Untitled.pdf -c.setpdfwrite -fUntitled.ps)' failed (1)

fatal error: failed files: "Untitled.ly"

It does generate Untitled.ps, but it is binary gibberish, and not the ascii postscript I would expect from a *.ps.

Your assistance is greatly appreciated!

william z