[R] Why color changed in ps.file?

[Stat/NCKU]

Dear R-friends,

When I selected "Save as postscript" via mouse left-button on the active
"R Graphics" window, those colored lines I made in the plot changed in
the saved postscript file, e.g., color blue becomes green, red becomes blue,
...

I have not changed any setting/options.
What's going on?

My version of R is
> version
         _
platform i386-pc-mingw32
arch     x86
os       Win32
system   x86, Win32
status   Patched
major    1
minor    2.2
year     2001
month    03
day      22
language R

Best regards,

C. Joseph Lu
Associate Professor
Department of Statistics
National Cheng-Kung University
Tainan, Taiwan

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