12-31-1969 showing up in Ajax Scroller

Does anyone have any idea why i get a random (12-31-1969) date showing up in some of the newsfeeds I run through Ajax Scroller? It seems to be random and when it happens i see like two or three dates in a row. All the other dates in the news articles and the articles themselves  show up fine. Any help would be appreciated.

Have a look on the sorce of those news feeds. See if they have valid dates on items or not.