Peculiar Interface Lag/Glitchiness

It’s been a while since I ran blender, a few weeks, and I need to do some work on a logo project. But when I booted up Blender, I started to notice that the interface wasn’t acting properly. Drop down menus were difficult to use, flickering and not registering selections properly. Pretty much any interaction with the interface also sort of lags, in that if I don’t move the mouse when I click something, it won’t register the input until I move the mouse.
The 3D viewport is fine. It’s not laggy, it runs fine.
All of my drivers should be up to date, and I tried re-installing Blender. The problem persisted.