User on a laptop with a HORIZONTAL black borders that come up very intermittently, usually starting with Zoom, and then on other applications. She then can't get to menus across the top. Goes away on restart. She thinks the monitor is going bad but I'm not so sure, this doesn't seem like it to me. Very intermittent and has been going on since June. Google finds a million results on borders on the sides...but not on top and bottom. Any leads?
Sorry, this is the only screenshot I could get:

Update: She's now reporting the bar is all white.
Sorry, this is the only screenshot I could get:

Update: She's now reporting the bar is all white.
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