cmdscale: missing dimnames in R 2.1.0

When running the first example of cmdscale I got in R 2.0.1:

loc<-cmdscale(eurodist)
str(loc)

num [1:21, 1:2] 2290.3 -825.4   59.2  -82.8 -352.5 ...
 - attr(*, "dimnames")=List of 2
  ..$ : chr [1:21] "Athens" "Barcelona" "Brussels" "Calais" ...
  ..$ : NULL


In R 2.1.0 I get:

loc<-cmdscale(eurodist)
str(loc)

num [1:21, 1:2] 2290.3 -825.4   59.2  -82.8 -352.5 ...
 - attr(*, "dimnames")=List of 2
  ..$ : NULL
  ..$ : NULL

I miss the names of the cities. What can I do?

Thanks - Wolfram