Hi,

I wanted to install Rgraphviz. From the R GUI, I downloaded the package but when I tried to load it I got the following error message:
"This application has failed to start because libcdt-4.dll was not
found. Re-installing the application may fix this problem."

The R commands and errors are:
> utils:::menuInstallPkgs()
trying URL 'http://www.bioconductor.org/packages/2.5/bioc/bin/windows/contrib/2.10/Rgraphviz_1.24.0.zip'
Content type 'application/zip' length 969595 bytes (946 Kb)
opened URL
downloaded 946 Kb

package 'Rgraphviz' successfully unpacked and MD5 sums checked

The downloaded packages are in
        C:\Users\pe\AppData\Local\Temp\RtmpoebdlH\downloaded_packages
> library(Rgraphviz)
Error in inDL(x, as.logical(local), as.logical(now), ...) : 
  unable to load shared library 'C:/Users/pe/Documents/R/win-library/2.10/Rgraphviz/libs/Rgraphviz.dll':
  LoadLibrary failure:  The specified module could not be found.


Error: package/namespace load failed for 'Rgraphviz'
My sessioninfo is:
> sessionInfo()
R version 2.10.0 (2009-10-26) 
i386-pc-mingw32 

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252    

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

other attached packages:
 [1] GOstats_2.12.0       Category_2.12.0      multtest_2.2.0       R.utils_1.2.4        R.oo_1.6.5           R.methodsS3_1.0.3    genefilter_1.28.0   
 [8] hgu133a.db_2.3.5     org.Hs.eg.db_2.3.6   GEOquery_2.8.0       RCurl_1.2-1          bitops_1.0-4.1       biomaRt_2.2.0        affy_1.24.1         
[15] int.intact.db_1.1.1  int.geneint.db_1.1.1 PAnnBuilder_1.8.0    RpsiXML_1.6.0        hypergraph_1.18.0    XML_2.6-0            RBGL_1.20.0         
[22] annotate_1.24.0      GO.db_2.3.5          RSQLite_0.7-3        DBI_0.2-4            AnnotationDbi_1.8.0  Biobase_2.6.0        graph_1.24.1        

loaded via a namespace (and not attached):
[1] affyio_1.14.0        GSEABase_1.8.0       MASS_7.3-3           org.Sc.sgd.db_2.3.5  preprocessCore_1.8.0 splines_2.10.0       survival_2.35-7     
[8] tools_2.10.0         xtable_1.5-6        
> 

What do I need to do to install and load this successfully?

thanks!


      
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