Skyrim Graphics Problems Options

[Acadian]

I've got some graphic weirdness going one in my lightly modded game. I'm posting a new thread for this instead of in the mods section because I'm not sure if it is a mod problem or a computer/graphics card problem.

Sometimes, when outdoors, I get sort of a neon starburst effect that seems localized to one (random) area. Like this. If I exit and reload, the problem goes away. If I turn away from the problem and move on, I can leave it behind.

I'm not sure how to proceed. Here is info that may help troubleshoot:

GPU: Nividia GeForce GTX 460 with latest updated driver. It is not a new card and I have had a couple of minor problems with it in Oblivion; that is why my gut tells me the problem may be here.

Mod Stuff (NMM install):

ESM’s:
Skyrim
Update (not positive what this is)
Dawnguard
Dragonborn
Hearthfires
AzarHair (Ponytail Hairstyles)

ESP’s:
HiRezTexPacks 1,2,3 (DLC)
Viadani’s Bag of Holding
Portable Campsite
The Eyes of Beauty
Triss Armor
Summoning Jewelry (added after problem started)
Oblivious Horses (added after problem started)

No ESP or ESM:
CBBE (body mod)

I appreciate any ideas on how to isolate and fix the problem.

[Acadian]

For a month or two I’ve had a problem of my screenshots not coming out about two thirds of the time. Example.

The other third of the time they come out fine.

I’ve changed nothing that I can think of that would cause this. I use the screenshot ability that comes with the game and simply press ‘Print Screen’ which causes a capture to be sent to my hard drive. That is, no steam or Fraps involved. No changes to my mods or settings as it relates to graphics. My GTX 770 graphics card is less than a couple years old and impeccably kept up to date with the most current drivers.

I’d appreciate any ideas on what the problem might be.