Changing desktop icon size?

[Eric Sandeen <sandeen jump net>]

I found a suggestion that placing

style "icon"
{
  font="-Adobe-Helvetica-Medium-R-Normal--17-120-100-100-P-88-ISO8859-1"
}

widget "*DesktopIcon*" style "icon"

in my ~/.gtkrc file would allow me to change the font for my desktop
icons in gnome - they are currently too small to read.  However, the
above snippet seems to have no effect whatsoever.  Any suggestions?

Thanks,

-Eric