Iv lost my side bar

When I use Bob i loose my side bar, i.e My Games, Join a game. I know its me pressing something i shouldn't, but can someone help?
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://rzmhprwww.conquerclub.com/forum/
http://rzmhprwww.conquerclub.com/forum/viewtopic.php?f=6&t=41522
dezzy26 wrote:move your mouse curser to the left side of the screen and it should reappear then click on the relevent menu to switch it back on