[R] bug in dev.copy2pdf output?

[selwyn quan]

Hi,

Am using R 2.13.1 on Linux (Fedora). Is anybody else having problems with 
dev.copy2pdf xyplot output with the pch=1 (open circle) symbol? The 
symbols come out as "q" in the PDF.  dev.copy2eps produces the correct 
results as does cairo_pdf. Other symbols produced with dev.copy2pdf seem 
ok.

Thanks,
Selwyn