okay..really small thing..but it's been bugging me for a while.
On the main menu, we see all the main forum titles and then the sub-forums, ie: life is sub-divided into Free thoughts, Art and Culture, and WE&P, so on and so forth. Now some of the sub-categories have light bulb icons by their side, for example: general science and tech, WE&P and Bio & genetics, whilst others do not.
Would someone enlighten me please?:)

the lightbulb shows up when new posts have been made in that category since the last time you have checked them.
select "mark all forums read" and the bottom of the main screen and you will see all of the lightbulbs disappear.

:)

everyday's a school day......cheers NF!:D