i tried
updata.packages("Biostings")
but it is still 2.13.1
the new one is 2.14.1,

so i tried

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

Using R version 2.13.1, biocinstall version 2.8.4.
Installing Bioconductor version 2.8 packages:
[1] "Biostrings"
Please wait...
Installing package(s) into ‘C:/Users/shangao/Documents/R/win-library/2.13’
(as ‘lib’ is unspecified)
Warning: package 'Biostrings' is in use and will not be installed

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