Since I started playing NV again after the last patch, certain things (special graphics effects, it turns out) being within my frontal line of sight (even at extremely long distances from me) are causing this awful puke-yellow strobing affect on my screen, which makes the screen painfully unusable until you turn your head/view away to the sides, to where the cause of the strobing is no longer in your frontal zone. But as soon as you look back in the direction it came from, it starts up again.

So, I gritted my teeth and went straight towards the cause of the strobing, and the first cause I identified was the hazy, propane-flame-like exhaust that is discharged underneath Mr. Gutsy robots. As soon as I kill the robot and the emissions stop, the strobing goes away. Since then, I have identified several other causes of this affect, including enemies that are actively using stealth boys (again, a hazy, ephemeral kind of special effect), such as the Nightkin; and the greenish explosions from pulse grenades or the Meltdown explosion affect. It's only these hazy, amorphous kinds of special affects that cause the strobing on my screen.

I updated the drivers on my ATI Radeon 5870 card recently, so I'm sure it's not old drivers. Any thoughts or ideas?