Hi everyone, My Surface RT touch cover makes a sound when I press the keys. see it in this video: [video=youtube_share;3MWSAxpH0dc]http://youtu.be/3MWSAxpH0dc[/video] Is it normal or is my touch cover defective? I am getting a little annoyed by that and want to know if I should replace the cover or not... I went to check the demo covers at a Microsoft store but because there were so many people I couldn't hear anything... :/ Please check your cover and let me know if it also makes that noise. Thanks!