Well... poop. I was hoping it'd be something easy to just point at and go "ah-ha!" but... nope.
It looks like it's effecting the road and the grass, but not the cars or the red/white stripes down the side of the road.
Does anyone know if the RAM test in the test screen actually tests all the RAM or does it skip some of the video RAM like the 6116's at 3E, 3F, 4E, and 4F?