Gah — stats! One of the hats I wear during work hours is related to stats. Some people think those things are carved in stone. But if you run more than one program, you get to see how messed up they are. One loads in the head, one loads in the footer — that alone is enough to mess up the numbers. Did the page finish loading, did the tracking code load, etc., etc. And on top of host issues there’s ISP issues, caching servers, etc.