Since a few days 4 keys on my keyboard randomly don't react immediately. ( [O] [L] and [.])
Sometimes they do, sometimes they don't
I don't know what is going on. Now while i am typing this question, there is no problem at all. But in a few minutes, i am typing again and i have to retype these 4 keys again, and sometimes again and again.
I don't have the feeling it is a hardware thing, i mean, no coffee or moist landed on my keyboard. Also the behaviour is not constantly erroneous.