Playing online games and being logged out because of no action on your part can be a very frustrating thing for online gamer. You can probably get a free macro program to be switched on while you go get some lunch OR you can even build one of these nifty keep-alive circuits made specifically just for that.
This is a super powerful little circuit when playing an online game that logs you out of the game after not sensing any key strokes for a minute or two. Being I put this circuit in Wii shaped mint tin I called it the Wii Wand of Power.
Watch the video of this in action: