Another thing I find confusing abouty your numbers is the question of concurrency. Repeat log-ins is something different. So what is concurrency and how has it ranged over the month? Well, there were 105 million user hours, spread over the 2,208 hours in Q4, so grand average concurrency was 47,554 heads. This doesn't answer the rest of Prok's question, of course, and I would certainly like to see a finer grained look at it.