Where have all the contacts gone to in my Yahoo address book

[nicholasCox]

Where have all the contacts gone to in my Yahoo address book?
All the contacts seem to have vanished from my Yahoo mail address book, I was hoping this was just a temporary glitch but it has been this way for a couple of weeks now. However, if I click Tools > Get updates from others > See updates from.. they are all there, though with no details. Can anyone shed any light on how to restore them in to my contacts list?

one click tools