[R] changing axis font size in a pairs plot?

[Rob Knell]

Hello

Can anyone let me know how I might change the size of the numbers on the
axes in a pairs plot? The normal cex.axis call doesn't do anything,
cex.labels only seems to change the font size in the diagonal labels. Using
R 1.8.0 on a Mac with OS X.3.

Thanks

Rob Knell