[R] Problems updating packages

[Tolga Uzuner]

Dear R Users
Ive just uninstalled R and reinstalled from scratch. I then hit Update 
Packages and get the following message:

 > update.packages(ask='graphics',checkBuilt=TRUE)
--- Please select a CRAN mirror for use in this session ---
Warning: package 'foreign' in library 'C:/Program 
Files/R/R-3.0.2/library' will not be updated
Warning: package 'lattice' in library 'C:/Program 
Files/R/R-3.0.2/library' will not be updated
Warning: package 'Matrix' in library 'C:/Program 
Files/R/R-3.0.2/library' will not be updated
Warning: package 'mgcv' in library 'C:/Program Files/R/R-3.0.2/library' 
will not be updated
Warning: package 'nlme' in library 'C:/Program Files/R/R-3.0.2/library' 
will not be updated
 >

Why would this be the case ?

Thanks in advance