When playing SP, or MP. Sometimes when walking through certain areas, I get a strange box like artifact in the upper right hand corner. Its not a constant thing, just very seldom does it happen.

It always happens when I run through the indoor sections on Skyline, and near the end of the first mission in SP when you are about to first walk into the liberty dome.

Anyone else have similar issues?

CPU: 3770k
GPU: SLI 660ti's

Drivers up to date, stock clock speeds on everything.

I also experience this. This happens all the time in skyline in the lower, indoor areas. There is also an artifact in the lower right hand corner.

Those are cigarette burns just like in cinema