Could someone please advise me on this question. I plan to change from monthly logs to weekly logs. I would like to end the month of December as a whole month log, and than begin January with weekly logs. My question is this, at which date (what point) do I change the configuration on the header to get it right. My fear is that is I change the header too early, I may end up making the last week of December as a week log. Or if I do it too late I may not be early enough to January to start with week logs. I want to time the change so that we get all of December locked into one month. and start January fresh with weekly logs. Thanks, Ben