[R] X11 fonts problems

[carol white]

Hello,
I installed R--2-1.14.1.pkg on mac OS v 10.7.2 and when I wanted to invoke hist, I got the following error msg:

Error in title(main = main, sub = sub, xlab = xlab, ylab = ylab, ...) : 
  could not find any X11 fonts
Check that the Font Path is correct.
In addition: Warning messages:
1: In function (display = "", width, height, pointsize, gamma, bg,  :
  locale not supported by Xlib: some X ops will operate in C locale
2: In function (display = "", width, height, pointsize, gamma, bg,  :
  X cannot set locale modifiers


Should I have installed any package or should I install any thing else for X11 like free type-2.4.8? I have found some directories related to fonts but apparently, are useless for this purpose? I installed devpack4-darwin8-bin4 but didn't help.

> sessionInfo()
R version 2.14.1 (2011-12-22)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] C/UTF-8/C/C/C/C

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


Thanks in advance

Carol