Your problem is that ADVDX declared/paid the div. yesterday after most brokerages were closed. (I talked to ADVDX at 5PM EST yesterday and the div. had neither been declared nor paid.)
Brokerages have up to 3 days to distribute a div. Some people apparently have already gotten the div. TDAmeritrade as of 10:15AM (EST) hasn't put it in my account. TDA usually put it in the account 1 day after the payable date. This time, I probably won't see it until 2/2.
Where are you looking at? The last entry is 12/29/2011. I don't even see it in my account as of this morning. The drop in share price for ADVDX implies there was a divy but I haven't found it yet! Something is fishy!!!!!!!!!