Various things in the world turn green

[idcwhatmynameis]

I am getting some sort of thing where after I'm logged in for a while, various things start turning green (buildings, the ground, walls, etc.) And monsters in dungeons start turning invisible along with it. It starts out small then spreads until it's literally unplayable. Everything else is fine, character models, items, weapons, spells, even aoe circles and spreads from monster attacks (thank god). It only goes away when I completely exit the game and start it up again, then in about an hour or so of playing, starts up again. I'm sick of it, and it only just started with this new patch.

[Waaltar]

Try looking up a program to test your GPU's RAM. If your GPU's RAM is going bad, you will have to replace the card.