On my old laptop that I want to set up for my kids, the number 1 key is stuck. I have cleaned the laptop key 1 and also the additional keyboard that I plug into my laptop (the laptop has broken keys on it). The laptop makes that noise when a key is being pressed continually. I cannot figure out how to get it to stop. Any ideas that can help me? Any field I put the curser, the number 1111111111111111111111111111111111111111 fills everything. Thanks so much!