Cannot generate pdf. Error "file failed (8704)"

[Rodrigo Nogueira]

Hello all, 
First I would like to thank the Lilypond development/support community for this great tool.
I installed lilypond from the cygwin packet. The lilypond version I'm using is 2.10.7
I have the following problem. When I run the lilypond comand (no options, just "lilypond <file>") I can't get to end of the command, the .pdf file is not generated. But then, if I re-run the errored command by hand it works fine. See the output:

$ ls test.*
test.ly

$ cat 
test.ly
{ a }


$ lilypond test
GNU LilyPond 2.10.7
Processing `test.ly'
Parsing...
test.ly: 0: warning: no \version statement found, please add

\version "2.10.7"

for future compatibility
Interpreting music... 
Preprocessing graphical objects...
Layout output to `test.ps'...
Converting to `test.pdf'...
`gs -q  -dSAFER  -dDEVICEWIDTHPOINTS=595.28 -dDEVICEHEIGHTPOINTS=841.89  -dCompatibilityLevel=1.4  -dNOPAUSE -dBATCH -r1200  -sDEVICE=pdfwrite -sOutputFile="test.pdf" -c .setpdfwrite -f "
test.ps"' failed (8704)
/usr/share/lilypond/2.10.7/ly/init.ly:41:1: error: GUILE signaled an error for the _expression_ beginning here
#
 (if (pair? toplevel-scores)
/usr/share/lilypond/2.10.7/ly/init.ly:41:5: error: syntax error, unexpected '(', expecting '='
#(if 
     (pair? toplevel-scores)
error: failed files: "test"


$ ls test.*                                                                 
test.ly  
test.ps                                                                

$ gs -q  -dSAFER  -dDEVICEWIDTHPOINTS=595.28 -dDEVICEHEIGHTPOINTS=841.89  -dCompatibilityLevel=1.4  -dNOPAUSE -dBATCH -r1200  -sDEVICE=pdfwrite -sOutputFile="
test.pdf" -c .setpdfwrite -f "test.ps"

$ ls test.* 
test.ly  test.pdf  test.ps                                                      

Regards,

Rods