[R] lattice error

[Martin Wegmann]

Hello, 

I tried to open lattice, but I get the following error:

> library(lattice)
Error in loadNamespace(i, c(lib.loc, .libPaths()), keep.source) :
        package `grid' does not have a name space
Error in library(lattice) : package/namespace load failed
>

I retyped it after loading grid but the same message appeared. 

could it be that it is caused by a recently done update.packages() ?

any idea what might cause this problem?

using

> R.version.string
[1] "R version 1.7.1, 2003-06-16"


thanks in advance, Martin