Display list redraw incomplete

Hi,

I'm observing the following warning with R-2.10.0 on a machine I have remote access to. Like what happened to Roger ( http://www.mail-archive.com/r-devel at r-project.org/msg08669.html ), two extra instances of X11 are open after dev.off(). Although I'm reporting this on R-2.10.0, it's reproducible on R-devel r50541. Any thoughts about this?

Thanks a lot for any info,

b

plot(1)
dev.off()

X11 
  4 
Warning message:
In dev.off() : Display list redraw incomplete

sessionInfo()

R version 2.10.0 (2009-10-26) 
x86_64-unknown-linux-gnu 

locale:
 [1] LC_CTYPE=en_US.iso885915       LC_NUMERIC=C                  
 [3] LC_TIME=en_US.iso885915        LC_COLLATE=en_US.iso885915    
 [5] LC_MONETARY=C                  LC_MESSAGES=en_US.iso885915   
 [7] LC_PAPER=en_US.iso885915       LC_NAME=C                     
 [9] LC_ADDRESS=C                   LC_TELEPHONE=C                
[11] LC_MEASUREMENT=en_US.iso885915 LC_IDENTIFICATION=C           

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base