|Got same situation with my H-P one. Comes from pushing down on the keys at slight angle with your fingers. Thus wearing the shafts and the contacts. On mine they jamb about 2/3rds the way down, and this get omitted letters. |
Need one of the spray lubricants talked about here, and begin looking for another keyboard.
As mine is so old, had to use a docking station and separate keyboard then.