[Zope] cut/paste

I'm a zope newbie and have just started learning using The Zope Book. I signed up for one of the free accounts at zopesite.com and have been using it, but I have a pretty basic problem: when I cut something from within a folder, the paste button appears, but as soon as I navigate to another folder it disappears and I am unable to paste the object somewhere else. Am I missing something? leland myrick