I am playing on Sands of the Caribbean right now.  I'm not getting creamed, but over the past two days (since I started there) I am losing the vast majority of my double downs.  I almost NEVER get a high card, like an ace or a 10, when, say, doubling down on a 10.  Oh, I get plenty of aces when doubling down on 11, however.  I don't think this is a short-term downward trend in the stats, either.  Anyone else have any experience there?