Mac installation of R not liking lattice

Peter,

Warning in grid.Call("L_textBounds", as.graphicsAnnot(x$label), x$x,

x$y,  :

 no font could be found for family "Arial"
Error in grid.Call("L_textBounds", as.graphicsAnnot(x$label), x$x,

x$y,  :

 Polygon edge not found

I don't see this error on my system.  I'm no expert but it 
appears to a font problem on your system.  Macs seem to have 
a common problem with corrupt font caches.  Flushing your 
font cache might fix your issue, but that's just speculation.

I found a font cache cleaning program online, Font Finagler 1.0, and
installed it as root.  The Font Finagler program is free for 40 font
cleanings, after which it costs $11.  I ran this as root, including all
the different types of font caches in the inspection and cleaning.  On
my first try after rebooting the Mac I still had the same problem, but
then a short time later the problem disappeared, so maybe the font
cleaning was key.  

Thank you for suggesting flushing the font cache as a possible solution.

Scott Waichler