[BioC] Update not working: Windows rw1071

[TyagiAnupam at aol.com]

Hello,
I recently upgraded to rw1071, copied old packages to new library, used 
pull-down menu's update command for Bioconductor. Got errors similar to the one 
below. How to fix this?
---anupam.

> update.packages(CRAN=getOption("BIOC"))
trying URL `http://www.bioconductor.org/bin/windows/contrib/1.7/PACKAGES'
Content type `text/plain' length 11255 bytes
opened URL
downloaded 10Kb

reposTools :
 Version 1.1.45 in H:/PROGRAMLOCAL/RW1071/library 
 Version 1.1.46 on CRAN
Update (y/N)?  y
trying URL 
`http://www.bioconductor.org/bin/windows/contrib/1.7/reposTools_1.1.46.zip'
Error in download.file(url, destfile, method, mode = "wb") : 
        cannot open: HTTP status was `404 Not Found'
In addition: Warning message: 
DLL attempted to change FPU control word from 8001f to 9001f 

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