[R] Problem accessing functions in package 'roxygen'

[Robert A. LaBudde]

I have Vista Home with R-2.9.0, and installed and tried to test the 
package 'roxygen':

 > utils:::menuInstallPkgs()
trying URL 
'http://lib.stat.cmu.edu/R/CRAN/bin/windows/contrib/2.9/roxygen_0.1.zip'
Content type 'application/zip' length 699474 bytes (683 Kb)
opened URL
downloaded 683 Kb

package 'roxygen' successfully unpacked and MD5 sums checked

The downloaded packages are in
         C:\Users\RAL\AppData\Local\Temp\RtmpZPlILq\downloaded_packages
updating HTML package descriptions
Warning message:
In file.create(f.tg) :
   cannot create file 
'C:\PROGRA~1\R\R-29~1.0/doc/html/packages.html', reason 'Permission denied'
 > library('roxygen')
Warning message:
package 'roxygen' was built under R version 2.9.1
 > trim("  1234")
Error: could not find function "trim"

I have a similar problem with trim.right(), trim.left() and other 
functions I've tried.

Any ideas?
================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral at lcfltd.com
Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
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