As of today, I noticed that near the bottom of my screen, on the left side, I have what looks like a white stuck pixel. At least, that's what I thought at first. If I looked at it sideways, it looked like it was actually between the actual display and the glass. Upon even further 'testing', it only seems to light up when the capacitive button backlight is on. Any idea what could have have caused this, or any possibly fixes? It's driving me crazy.