Actually, I'm overclocked to 3.2Ghz. And of course I removed the overclock to make sure that wasn't the problem. I'm not new at this. The graphical artifacts weren't that obvious with 100.30. In NWN2 I didn't notice it at all. But it 100.54 they're everywhere. They are installed correctly, like I said, I'm not new at this. And I will report my problems on forums like these to warn others, and seek solutions, that's why these forums exist.