Hi all Bit of an issue. I've a rather wide excel sheet, and as such it is rather convenient to have it displayed in full screen on my secondary ultra-wide monitor. If i snap the excel to half of the screen, it is absolutely fine, however every single time i try and make it full screen, I end up with big seconds of the work blanked out with grey or black boxes. Below is a screenshot of a section where the error is present (it occurs throughout the excel sheet in different areas etc). Where it is grey, this ought to be no different to the area to the left hand side. That is it should be displaying cells and numbers. If i shrink the window or snap it to the side, it once again displays exactly as it should. I'm on an sp4, running office 2016. Any other info needed, just ask. edit: also made onenote full screen on the second display, and similar issues arose. The grey and black areas are not static, rather if you scroll around, some will vanish, but others will occur elsewhere.