[Bioc-devel] Rgraphviz error in Bioconductor 2.2 build for windows

Hi,
since my package oneChannelGUI suggests Rgraphviz I realized that, in 
Bioconductor 2.2 release, the windows version for Rgraphviz
 is not available due to an error in compilation example compilation.

 checking examples ... ERROR
Running examples in 'Rgraphviz-Ex.R' failed.
The error most likely occurred in:

### * agwrite

flush(stderr()); flush(stdout())

### Name: agwrite
### Title: A function to write a Ragraph object to a file
### Aliases: agwrite agread
### Keywords: graphs

### ** Examples

V <- letters[1:10]
M <- 1:4
g1 <- randomGraph(V, M, .2)
z <- agopen(g1,"foo",layout=FALSE)

Actually I got around using the Rgraphviz from bioconductor 2.1, but I 
would like to know if it will be possible to fix the error.
Cheers
Raffaele

----------------------------------------
Prof. Raffaele A. Calogero
Bioinformatics and Genomics Unit
Dipartimento di Scienze Cliniche e Biologiche
c/o Az. Ospedaliera S. Luigi
Regione Gonzole 10, Orbassano
10043 Torino
tel.   ++39 0116705417
Lab.   ++39 0116705408
Fax    ++39 0119038639
Mobile ++39 3333827080
email: raffaele.calogero at unito.it
       raffaele[dot]calogero[at]gmail[dot]com
www:   www.bioinformatica.unito.it