[R] SOS:) help on install package

[Yan Yu]

HI,
i tried to install package by using
update.packages( "locfit" )

I got the following error:
trying URL `http://cran.r-project.org/src/contrib/PACKAGES'
Content type `text/plain; charset=iso-8859-1' length 172492 bytes
opened URL
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downloaded 168Kb

Error in "colnames<-"(`*tmp*`, value = c("Package", "LibPath", pkgFlds)) :
        attempt to set colnames on object with less than two dimensions

IS there anyone know what is wrong, and
what other commands to use to install a package in R?

many thanks,
yan