Green lines across Program and Source monitors

Hi all. A few days ago I opened a Pr project to find green stripes across both my Program and Source windows (note how they appear in the Program monitor even when no footage is selected):

Thanks to this thread, I isolated the problem to my Intel HD Graphics 620 integrated graphics driver - the green lines appeared when I updated to the newest driver version (27.20.100.8280). When I rolled back to the previous version (27.20.100.8190), the lines disappeared.

The problem is that, with the older graphics driver, I get some highly concerning display glitching with my computer in general:

So now I'm stuck between two unusable situations: green lines over my footage with the new graphics driver, and full-screen display glitching with the old one.

Things I've already tried to cure the green lines (besides the graphics driver shenanigans):

• Updating Premiere to 14.3
• Rolling back Premiere to 14.2, 14.1, and 14.0
• Switching between GPU Acceleration (Open CL) and Software Only rendering in Project Settings
• Deleting my Media Cache
• Creating a new Pr project
• Opening an old Pr project
• Importing different types of footage (mp4, mov)
• Restarting my computer

Any advice would be greatly appreciated!