Problem with CapsLock

[Redwood]

When i press the capslock while i write my texts, the window "turn off". The same occurs with the team fortress, when i press capslock on the chat, the game minimizes and i come back to my desktop.
Anyone knows what i have to do to fix that?

PS: my window turn off 3 times while i wrote this text.

 

[IrateDonnie]

I had this problem too, I used screwdriver.exe & removed the caps lock button from the keyboard