I have noticed that within the last two weeks when I type using the Surface Pro 4 keyboard that I will get an occasional short squeak or squeal from the speakers. It sounds like some sort of an error with the sound card. It usually happens when I hit the shift key when typing, but I can't reproduce the error. I happens about 4-5 times daily. Anyone else have this happen? I'm trying to figure out if its the keyboard producing an error or if it is Windows 10 or the hardware itself. Thanks!