Only happen with the fixed texture\meshes? I've seen this happen in other parts of the game too (not with litter though) but I've been unable to find any solution to it yet.
False alarm - it happens without the patch as well. Seems like it's either an engine or a driver issue.
A few more potential candidates for texture correction in the next version. Some of these are quite nasty and pixelated. Note that I have the first version uninstalled, here. I'm of course referring specifically to the jagged edges on those 2D decals (some might be parallax mapped, not sure). Bethesda seems to have a history with these sorts of things...
http://img.photobucket.com/albums/1003/acious/ScreenShot30.jpg
http://img.photobucket.com/albums/1003/acious/ScreenShot31.jpg
http://img.photobucket.com/albums/1003/acious/ScreenShot32.jpg
http://img.photobucket.com/albums/1003/acious/ScreenShot33.jpg
EDIT: Eek, The Mall is really quite bad with all these poor 2D elements.
In front of the National Archives...
http://img.photobucket.com/albums/1003/acious/ScreenShot1-1.jpg
http://img.photobucket.com/albums/1003/acious/ScreenShot0-2.jpg
A nearby bus stop...
http://img.photobucket.com/albums/1003/acious/ScreenShot2-2.jpg
Some miscellaneous rubble...
http://img.photobucket.com/albums/1003/acious/ScreenShot4.jpg
Also, I know you fixed the paper textures, but there is also a cut-off corner on one of them as seen right here:
http://img.photobucket.com/albums/1003/acious/ScreenShot3-1.jpg
Don't know if you plan on fixing all this stuff, but hey, it's there if you're interested.
EDIT 2: I noticed some stuff in the Hall of Columns (inside the Capitol Building) - namely, that most of the rubble meshes scattered around don't fully come into contact with the floor. Very noticeable, and more than just one or two do this. Sloppy work, Bethesda.