[GAMEPLAY]/[CLIENT??] End Game Issue

One thing I've noticed this patch is that any time after 20 minutes if I try to type, it doesn't work. Pressing enter brings up a weird right click menu, with the only options being print and view source. Then, as the game ends, the client won't close, at all. I have to restart my computer, just to encounter the same issue the very next game. Any explanations??

Update: I figured out the problem was my touchpad.