Windows Taskbar Spookiness

Any one else experienced this? Ever?
This was my Windows 10 taskbar. I’ve trimmed the right-hand side of the image so only the 2560 pixels on the left are shown.
See those Cubase labels? Over the past three days, they (and every program’s labels) have got wider and wider and wilder.
I fixed it with a GPU driver downgrade.
Just to reiterate, that taskbar is 2560 pixels across.
Image1


EDIT
I spoke too soon. Labels are growing again.