Hello, I recently purchased a VivoTab Note 8 and it has HORRIBLE offset all around: around 1mm (not pixel!) in the middle of the screen and increases as the stylus goes from edge to edge. I have calibrated it multiple times outside of the case, reasonably far away from magnetic fields to no avail. I have not been able to get it to work consistently in all orientations. As it is, it is difficult to even click buttons in OneNote without aiming with the hover pointer. During normal use, it varies between counterintuitive and extremely distracting. If I redraw a line with the stylus, I end up drawing two parallel lines instead. How do I fix this and how do I convince Amazon that this one needs a replacement?