Yes, I have also experienced that same problem. First with Easy and then with Pepe'. Easy is completly over it now, but we have had her since July. And Pepe is doing much better - we got him in Aug. Pepe still shows some signs of attachment issues, like he cries for me if I leave him, but in a few minutes he goes on to something else. Both of them had a long trip (overseas) to get to me, so I just figured it was from that. He should so much better over time. He just needs reasurance that you will be there forever. I try to give more attention to Pepe since he craves it and I think that has helped to resure him that I am always going to be there for him.
T.