I just noticed today that when I type on the keyboard I see a small pixel touch point where my finger touched the key. After the keyboard is gone, say after I send a text, and I touch the screen where the keyboard is located it doesn't do it. When i reuse the keyboard it is all clear again till I start typing. I am thinking it is something to do with the app, I am using perfect keyboard because I like the User Dictionary option. Any ideas or should I not worry about it ?