R help - Mar 2007 - X11 and linux and plotting and the vertical axis

I use R on linux and I go through exceed from a windows machine.

Depending on the amount of plots I do on a screen, sometimes the numbers
on the vertical axis
of the plots don't show up. I tried infinite of combinations of mar and
cex but nothing helps.
Yet, if instead of shooting the graphic upto the screen, I send it to a
pdf file or
a postscript file, the numbers on the vertical axis of the plots do show
up.

I've included a test.pdf file that shows the plot but the #'s show up
there and not
if I send the same plot to the screen. 

Below my version info, I've also included the output of doing par() at
the prompt in case that some of my
default settings look weird. I know next to nothing  about R graphics
but the problem 
definitely doesn't have anything to do with mar or cex though because
I've played with them pretty much the 
whole day.

If anyone knows of a thread on this or knos what needs to be changed, it
would
Be much appreciated. Thanks.


version
               _                           
platform       i686-pc-linux-gnu           
arch           i686                        
os             linux-gnu                   
system         i686, linux-gnu             
status                                     
major          2                           
minor          4.0                         
year           2006                        
month          10                          
day            03                          
svn rev        39566                       
language       R                           
version.string R version 2.4.0 (2006-10-03)


 par()
$xlog
[1] FALSE

$ylog
[1] FALSE

$adj
[1] 0.5

$ann
[1] TRUE

$ask
[1] FALSE

$bg
[1] "transparent"

$bty
[1] "o"

$cex
[1] 1

$cex.axis
[1] 1

$cex.lab
[1] 1

$cex.main
[1] 1.2

$cex.sub
[1] 1

$cin
[1] 0.1730130 0.1960814

$col
[1] "black"

$col.axis
[1] "black"

$col.lab
[1] "black"

$col.main
[1] "black"

$col.sub
[1] "black"

$cra
[1] 15 17

$crt
[1] 0

$csi
[1] 0.1960814

$cxy
[1] 0.02996404 0.03781139

$din
[1] 6.989727 6.989727


$err
[1] 0

$family
[1] ""

$fg
[1] "black"

$fig
[1] 0 1 0 1

$fin
[1] 6.989727 6.989727

$font
[1] 1

$font.axis
[1] 1

$font.lab
[1] 1

$font.main
[1] 2

$font.sub
[1] 1

$gamma
[1] 1

$lab
[1] 5 5 7

$las
[1] 0

$lend
[1] "round"

$lheight
[1] 1

$ljoin
[1] "round"

$lmitre
[1] 10

$lty
[1] "solid"

$lwd
[1] 1

$mai
[1] 1.000015 0.803934 0.803934 0.411771

$mar
[1] 5.1 4.1 4.1 2.1



$mex
[1] 1

$mfcol
[1] 1 1

$mfg
[1] 1 1 1 1

$mfrow
[1] 1 1

$mgp
[1] 3 1 0

$mkh
[1] 0.001

$new
[1] FALSE

$oma
[1] 0 0 0 0

$omd
[1] 0 1 0 1

$omi
[1] 0 0 0 0

$pch
[1] 1

$pin
[1] 5.774022 5.185778

$plt
[1] 0.1150165 0.9410891 0.1430693 0.8849835

$ps
[1] 12

$pty
[1] "m"

$smo
[1] 1

$srt
[1] 0

$tck
[1] NA

$tcl
[1] -0.5

$usr
[1] 0 1 0 1

$xaxp
[1] 0 1 5

$xaxs
[1] "r"


$xaxt
[1] "s"

$xpd
[1] FALSE

$yaxp
[1] 0 1 5

$yaxs
[1] "r"

$yaxt
[1] "s"
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