my problem with skyrim is, that is see the snowflake-particle-effect every time, even when it is not snowing/in interiours. the effect is not in the world, but directly in the camera (dont know how to explain

this is a bit annoying though not game-breaking.
skyrim-version is the newest, nvidia-driver 313.96, i also tried with all my mods deactivated, no change...and i have no mod installed that would mess with snow/particles in general.
modlist:
dawnguard
hearthfire
climates of tamriel
project enb
high res texture pack (official)
unofficial skyrim patch
unofficial dawnguard patch
unofficial hearthfire patch
relaistic lightning overhaul
weapons and armor fixes
smim
skyui
skyrim flora overhaul
WATER
better dialog/messagebox control
enhanced distant terrain
HDtextures DLC Fix
high res texture pack dlc tweaks
lush grass/trees
terrain bump
all newest version and loadorder boss-checked
can someone help?