These lines refresh every 30 sec. and 60 seconds. What causes it to change to 5 min and then you have to click clear changes and update lines to get it back where it was(30-60 sec.) I figured non-use but it still will change anyway.
i think as it gets close to the games gonig off (30 min before tip 7 pm eastern it goes to a 30-60 second and not the 5 min anymore. mid day its the 5 min thing you mention
