border of key on plot over-runs text inside key - how do I fix?

["Kurbat, Matt" <Matt.Kurbat@kmv.com>]

Dear Splus Users,

I'm trying to put a "key" on a plot.
My problem is: if I use "border = T",
then the lower edge of the border over-runs the text inside the key. 
I've tried experimenting with various options in "key," but to
no avail.

A piece of my code is below.

Does anyone have any suggestions for how to make the
lower edge of the border not over run the text?

Thank you,

Matt Kurbat


plot(x, y,
                xlab="...",
      ylab="...", type="n")
key(x=1, y=85,
        text = c("xxx","yyy"),
    points = list(pch = c(1,17)),
        font = c(1,1),
        size = 20,
        border = T)