I have been noticing some dead spots on my touchscreen recently. And I really didn't mind it before. But today, the upper left portion of the screen (landscape w start button on right) started not responding. I was cleaning up my email and I could not change the "All" to "Unread". With the touchpad there was no problem. Then I went into fresh note and definitely saw an area on the upper left side that would not mark out. I rebooted... THen that upper left side started responding. But initially it would also mark/ink on areas I did not touch (but close to the point of contact on the screen) Anyone else having this issue? Is this a calibration issue? A RAM issue? A screen protector issue? THanks!!