Have you noticed if it occurs when scrolling, typing, or after resizing the. I tried digging into office, excel, and windows settings for display, hardware acceleration, and literally anything else that could feasibly stop it but nothing has. It looks like a corruption of the display buffer
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What you could try is to copy all data to a fresh excel file, to make sure there's no junk data creating it.
Learn about the excelbuffer functionality and how to use it to copy data from al to excel.
Under very specific conditions, expanding a group in excel will cause all open excel workbooks to stop visually updating In testing, i learned that excel continues to work, but you just can’t see anything happening on screen. The first thing to check when there is a display issue in excel are the multiple displays settings, even if you are working on a single monitor Go to options, general, when using multiple displays and select “optimize for best appearance” and restart excel.
