My screen is totally lagging now, every time I go to type in my numerical password or text anything it keeps clicked on multiple buttons and typing/texting the wrong thing! Every app that I open drags and takes forever to open. And now, when I pull down the top drop down it is automatically opening it with the "other options" instead of the normal screen. I am beyond annoyed. And no, I am not a person who has a millions things downloaded or what ever. My phone was fine until the upgrade, these things started happening right away. What can I do!?