So overnight charging via my USB cord did not fix the problem; the screen/ink still looks messed up.
I bought a Energizer compatible PSP charger and I've had it plugged in for hours; but I still don't see a difference. Also, never having used a wall charger, I don't know if this is working right. The red light was on initially when the charger was plugged in; but then the light goes off. Is the red light supposed to stay on?