I have a Nokia n73 ME phone and got a pack of a few screen protectors for it. I followed the directions on the package, used a can of comrepssed air to get rid of dust and a piece of microfibre cloth to clean any other fingerprints. After I put the protector on the phone, there is dust underneath it and a few bubbles. Does anyone out there have any tips to applying the screen protector so there's no dust, dirt at all?