I noticed that the top right corner of my screen (when in portrait mode) requires more pressure with the stylus to do anything. If I turn on rotation and turn it horizontal and try to pull down the notification shade from the top right corner, it'll come down with ease, but in portrait mode I have to press harder.
Would they let me exchange my phone for another? I ordered mine online from ATT, but could I just walk into a store and get another one? I've only had the phone for about a month.