[R] axis fontsize suse 9.3

[Sebastian Leuzinger]

hello, does anybody have an idea why the fontsize is impossible to be changed 
in R version 2.1.0 under linux suse 9.3?
par(cex.axis=1.5) does not change anything and 
par(cex.axis=2) triggers the error message

X11 font at size 16 could not be loaded

any hints appreciated

-- 
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Sebastian Leuzinger
Institute of Botany, University of Basel
Schönbeinstr. 6 CH-4056 Basel
ph    0041 (0) 61 2673511
fax   0041 (0) 61 2673504
email Sebastian.Leuzinger at unibas.ch 
web   http://pages.unibas.ch/botschoen/leuzinger