[R] trouble getting b&w plots using trellis graphics

[Brian Riordan]

I'm having trouble getting a black and white plot using the trellis device.  
I have color graphics, but I'd like to use b&w for a paper.  For example,

trellis.device(color=F)
d <- read.table(textConnection("
A,B
0,1
1,2"), header=T, sep=",")
xyplot(A ~ B, data=d, type="o", lty=c(1:2), col=2, pch=19:20)
dev.off()

gives me a red line even though I specify color=F.

>sessionInfo()
R version 2.4.1 (2006-12-18)
i386-pc-mingw32

locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United 
States.1252;LC_MONETARY=English_United 
States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252

attached base packages:
[1] "stats"     "graphics"  "grDevices" "utils"     "datasets"  "methods"
[7] "base"

other attached packages:
  lattice
"0.14-17"

Thank you,
Brian

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