That configuration option is omitted now in favor of the new window selection in the logging page. It defaults to 7 days on first load but can be changed quickly from the option collapsible. The changes are monitored and after a 500ms delay the log page will reload with your new window and any sorting you might have selected. The purpose for the delay is if you are still typing/scrolling your date selection.
I just discovered the annoyance with unused station since adding Rain Delay and Rain Sensor (effectively the same things). I was planning on automatically unchecking the stations with 0 log data so they don’t even render on the graph’s, on load.
I’ll check out IE10 and Firefox because I committed myself earlier to supporting everything, haha.
Update: I found the problem in IE 10 and Firefox. Should be fixed now.