[R] problems with device drivers postscript() and pdf()

[Sibylle Matthes]

Dear R-help,
We are using the Platform AMD 64 Bit Opteron.
Our operating system is SUSE LINUX ENTERPRISESERVER SLES9.0
We are using R version 2.2.0 .
This is our problem:
None of the device drivers postscript() or pdf() is opening, e.g.
the following message is coming:
postscript("splines-Ex.ps")
Fehler in postscript("splines-Ex.ps") : unable to start device 
PostScript
ZusÃ¤tzlich: Warning message:
cannot open 'postscript' file argument 'splines-Ex.ps'

with regards
    Sibylle Matthes