- Solved
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Empty white rectangular overlay appears intermittently when actioning a Thunderbird function.
Every few days, when I'm actively using Thunderbird (v102.5.1 32-bit, on Windows 11 Home), a white rectangle appears at the top of the page (see snip attached - if 2 appe… (read more)
Every few days, when I'm actively using Thunderbird (v102.5.1 32-bit, on Windows 11 Home), a white rectangle appears at the top of the page (see snip attached - if 2 appear, delete 1). The interesting thing is that this box persists IN THE SAME SCREEN POSITION, EVEN WHEN I MOVE THE THUNDERBIRD WINDOW AWAY. It overlays everything else on screen at that position, making use of any icon or button beneath it impossible. However, by moving the cursor across the box, it is clear that whatever is beneath IS being recognised by the cursor (as it changes style when above a button etc); clicking at that place does activate it (eg opening a file from a desktop icon). I have found no way of removing the box (which can't be moved) other than rebooting the PC. This anomaly was happening BEFORE both the upgrade to Windows 11 (from 10) AND recent Thunderbird upgrades. I can find no clues from searching here or elsewhere - help would be much appreciated. Thanks