Ever since patch 1.5.26, I have been experiencing game breaking shadow errors. This seems to be worse than most cases I've read into where the shadows sort of flicker in an ugly manner, rather my shadows jump, flash, stretch, and refuse to hold still if I simply move the camera even an inch. I just decided to leave it be for the time being, in hopes that it was a common bug that would be quickly fixed with a patch, but no such luck. The problem persists with or without mods installed, and I have ran it on every setting including Low. (Before the patch, the game ran just fine on Ultra.)

So I guess this is what leads me crawling back here. Could someone help me play my game again without feeling like the sun of nirn decided to replace itself with a strobe light?

I've been having a less severe version of your problems since 1.5.24. Haven't found a solution yet. It also seems to me that the shadows are lower quality since 1.5. I actually didn't notice that the game was updated the first time I played after 1.5. After loading my game I was wondering why the shadows look so worse than last time I played. Might be just my mind playing tricks on me.

Well, if it makes you feel any better, I get the weird flickering on water surfaces after a couple hours of play, or the water decides to go all glossy whenever I rotate the camera around. It's annoying as all hell. The shadows seem to behave inside of buildings, but the second I step foot outside, they're all obviously line-looking and flicker occassionally. The shadows have been improved slightly (they don't seem as pixel-like as before) unless this is just my imagination 'cuz I've been playing Skyrim since the day it came out. lol

There's a thread on this already. Come join us.

http://www.gamesas.com/topic/1361153-update-15-shadows-are-invisable-move-with-camera-have-lines-issue-possably-figured-out/

Good news is, a poster spoke with Bethesda on the phone and they said the fix for this is top priority.