Lilypond slow on Windows Vista

[corey]

I'm sorry to be complaining about how Lilypond runs on Vista, but my laptop
doesn't have the hard drive space for a dual boot like my last one did. :(

Basically, Lilypond takes around a minute to parse and render a .ly file,
whereas it used to take (on Linux and WinXP) only a few seconds.  This is true
of even the shortest .ly files.

I didn't find any other bug reports about this, but I'm a noob, so I could have
missed it.

Thanks for all the great work!

-Corey