[BioC] update packages problem

[Ivan Baxter]

Hello all- I am having a recurring problem when I try to update packages 
from bioc.
It appears to stop at the transfer step (see below).

I am running R 2.1.1 on windows XP. Any help or suggestions would be 
appreciated.

thanks

Ivan

 >  update.packages(CRAN = getOption("BIOC"))
 >  update.packages()
--- Please select a CRAN mirror for use in this session ---
lattice :
 Version 0.12-1 installed in C:/R/rw2011/library
 Version 0.12-5 available at http://rh-mirror.linux.iastate.edu/CRAN
Update (y/N/c)?  y
limma :
 Version 2.0.2 installed in C:/R/rw2011/library
 Version 2.0.4 available at http://rh-mirror.linux.iastate.edu/CRAN
Update (y/N/c)?  y
trying URL 
'http://rh-mirror.linux.iastate.edu/CRAN/bin/windows/contrib/2.1/lattice_0.12-5.zip'
Content type 'application/zip' length 713040 bytes
opened URL
downloaded 696Kb

trying URL 
'http://rh-mirror.linux.iastate.edu/CRAN/bin/windows/contrib/2.1/limma_2.0.4.zip'
Content type 'application/zip' length 1312391 bytes
opened URL
downloaded 1281Kb

package 'lattice' successfully unpacked and MD5 sums checked
package 'limma' successfully unpacked and MD5 sums checked

The downloaded packages are in
        C:\Documents and Settings\Ivan\Local 
Settings\Temp\Rtmp23662\downloaded_packages
updating HTML package descriptions
Warning messages:
1: unable to move temporary installation 
'C:\R\rw2011\library\file22121\lattice' to 'C:\R\rw2011\library\lattice'
2: unable to move temporary installation 
'C:\R\rw2011\library\file1458\limma' to 'C:\R\rw2011\library\limma'