so ive been busy and i haven't been able to play tf2 in a while, and when i finally get some time, this happens :
http://imgur.com/UyR0W
i have no idea how it happened, but i cant click anything on the screen, ive already tried hovering my mouse around the edges trying to get the arrows to expand the screen but there arent any
ive tried many things but i cant get the screen to go back to normal
help pls