Lily on mod_ruby question

Dear mod_ruby users,

I tried to install mod_ruby and all of my testscripts are running fine,
but I cannot get working Lily 0.1.5 with mod_ruby. It runs as CGI or in
command line fine, but after renaming to lily.rbx and moving to the
correct place it gives just a blank screen, and Apache 2.0.48 shows no
error. I have Ruby 1.8.1 and mod_ruby 1.2.2. My settings are the
following:

<IfModule mod_ruby.c>
        RubyRequire apache/ruby-run
        RubySafeLevel 0
        <Location /ruby>
                SetHandler ruby-object
                RubyHandler Apache::RubyRun.instance
                Options ExecCGI 
        </Location>
        <Files *.rbx>
                SetHandler ruby-object
                RubyHandler Apache::RubyRun.instance
        </Files>
</IfModule>

What should I do?

Greetings,

Bence