The online status shows the following:
On January 20, 2012, we mailed you a notice that we have approved this I131 APPLICATION FOR USCIS TRAVEL DOCUMENT. Please follow any instructions on the notice. If you move before you receive the notice, call customer service at 1-800-375-5283.
---------------------------------------
Now two weeks later, I still haven't received the approved AP notice. What should I do? Thanks.