Hi,
I install GeneAnswers using;

source("http://www.bioconductor.org/biocLite.R")
biocLite("GeneAnswers")

However running the command;

> ###################################################
> ### chunk number 1: Loading required libraries
> ###################################################
> rm(list=ls())
> library(GeneAnswers)
Loading required package: igraph
Loading required package: RCurl
Loading required package: bitops
Loading required package: annotate
Loading required package: AnnotationDbi
Loading required package: Biobase

Welcome to Bioconductor

  Vignettes contain introductory material. To view, type
  'openVignette()'. To cite Bioconductor, see
  'citation("Biobase")' and for packages 'citation(pkgname)'.

Loading required package: XML
Loading required package: RSQLite
Loading required package: DBI
Loading required package: MASS
Loading required package: rgl
Loading required package: Heatplus
Loading required package: RColorBrewer
Error : .onLoad failed in loadNamespace() for 'Rgraphviz', details:
  call: value[[3L]](cond)
  error: unable to load shared object
'C:/Users/herberjm/R-2.12.1/library/Rgraphviz/libs/i386/Rgraphviz.dll':
  LoadLibrary failure:  The specified module could not be found.


  Check that (1) graphviz is installed on your system; (2) the
installed version of graphviz matches '2.20.3'; this is the version
used to build this Rgraphviz package; (3) graphviz is accessible to R,
e.g., the
  path to the graphviz 'bin' directory is in the system 'PATH'
variable.  See additional instructions in the 'README' file of the
Rgraphviz 'source' distribution, available at

  http://bioconductor.org/packages/release/bioc/html/Rgraphviz.html

  Ask further questions on the Bioconductor mailing list

  http://bioconductor.org/docs/mailList.html


Error: package/namespace load failed for 'GeneAnswers'



Looks like a dynamic link library is missing?

C:/Users/herberjm/R-2.12.1/library/Rgraphviz/libs/i386/Rgraphviz.dll


Thank you for advice.

> sessionInfo()
R version 2.12.1 (2010-12-16)
Platform: i386-pc-mingw32/i386 (32-bit)

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

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

other attached packages:
 [1] RColorBrewer_1.0-2   Heatplus_1.20.0      rgl_0.92.798
MASS_7.3-9           RSQLite_0.9-4        DBI_0.2-5            XML_3.2-0.2
       annotate_1.28.0      AnnotationDbi_1.12.0 Biobase_2.10.0
RCurl_1.5-0.1
[12] bitops_1.0-4.1       igraph_0.5.5-1

loaded via a namespace (and not attached):
[1] graph_1.28.0 grid_2.12.1  RBGL_1.26.0  tools_2.12.1 xtable_1.5-6

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