Well, my PC was updated, and I spend a lot of time in putty sessions.
The first thing I noticed was how awful it was to read. When I did a comparison I found they've changed the courier new font.
Is it time to find a new font? I really don't want to. Maybe a public alternative? It would be nice just to use the built in font, but this is not suitable for development, or just reading. Or maybe there was some system wide rendering change I can undo?