As per title, its a bit odd.
Basically the Esc key seemingly randomly doesn't work in games. Its very annoying as it often means i can't quit out, save my game etc.
It only started happening recently and doesn't happen every time, probably about 1 in 5 times i play a game. Not all games seem to be affected. Recent ones i have had trouble with are Amnesia the dark descent, Puzzle Quest 2(from steam) and the Gothic 4 demo.
There seems to be no pattern to it. Both steam and normally installed games seem to have the issue. When i restart a game its normally fine.
I have downloaded a keyboard checking software and the Esc seems to have no issues.