[R] R2.6 + Error saving plots as PDF

[Pedro Mardones]

Dear R users;

After installing R 2.6.0 I got the following error when I try to save
a plot as PDF or PS from the windows plot:
Error: Invalid font type
In addition: Warning messages:
1: font family not found in PostScript font database
2: font family not found in PostScript font database
However in R 2.5.0 works just fine
Any ideas how to make it work again (without having to install the
previous version)?

I'm running R under WinXP pro