"Flickering" screen in KC

[Yajirobe Yajipants]

Starting today, my screen flickers during movement in KC. I don't mean my laptop screen. My EQ window. I can see all of my windows (name/hp, pet, group, buffs, tell/convo windows) but I can't see any PC/NPCs. It's black. At first it was only in the Drolvarg Captain area, but it's doing it at the entrance as well.

I camped and relogged to see if this would fix the issue. It did not. At one point I gated to FV. The flickering happened here too, except, it's not all black. I could see the sky, fire from torches, and whatnot. Buildings and people were gone.