dired and multiple command problem

[Wolfram Brenig]

Hi,

I'm using dired+.el for my directory listing.

When marking multiple files and trying to 'cp' or symlink them as a whole using 
'C' or 'Y' only the first in the list of marked files gets copied or link and 
the mini-buffer says: 

Listing directory failed but 'access-file' worked

What am I doing wrong?

wb