Game Mechanics Fixes
Entering Yngol Barrow with a follower will no longer lock out menus and cause the display to go almost completely black (possibly also showing a load screen) until it is exited
The Marked for Death shout will no longer stack with itself
The script to drop dust in caves, ruins, etc. will no longer continue to run even when the player is not in the same cell
Fixed a trigger box in Sheogorath's Arena so that it doesn't needlessly run updates every 10 seconds permanently though the player has left and the quest ended

Quest Fixes
After the quest "Rise in the East" is complete, travelling to Japhet's Folly will no longer trap the player there unable to fast-travel away, and with the bombardment still occuring
After the quest "Darkness Returns" is complete, Nocturnal's pool and the symbols with which to choose Agent abilities will no longer disappear
The two Alik'r Warriors at Whiterun will no longer persist after the "In My Time Of Need" quest is completed
The three bound and hooded NPCs in the Abandonded Shack will no longer persist indefinitely (which they would whether alive or dead) when the Dark Brotherhood initiation quest "With Friends Like These..." is completed
Proventus Avenicci (Whiterun) will no longer complete the quest to deliver Balgruuf's Greatsword him if the player doesn't actually have it (such as by placing it on a weapon rack/plaque, which will take quest item weapons)
Using the Thu'um on the Throat of the World (where Paarthunax is the only NPC around) will no longer cause the random Radiant quest courier to deliver the player a letter indicating a random Word Wall location (High Hrothgar was already excluded so this was probably an oversight)
The quest to return materials to Madesi (Riften) to make jewelery with will now have quest markers
After the quest "The Man Who Cried Wolf" is completed, the very large purple shader graphic in Wolfskull Cave that accompanied the summoning of Queen Potema will no longer reappear when the cell resets
Bassianus Axius and Fastred (Ivarstead) will no longer have their Ivarstead dialog if The Book Of Love quest has been completed and they've moved to Riften

NPC/Creature Fixes
Bribing a guard will now properly clear bounty in that hold (this appears to have been intended but didn't work as it was set up properly)
Arcadia (Whiterun) will no longer refer to non-Nord players as Nords in her greetings
Stump the dog should now properly follow Frodnar (Riverwood) and not get stuck indoors
Eydis' (Old Hroldan Inn) hands/arms will no longer go through the countertop due to misaligned markers

NIF Mesh and Texture Fixes
Closed gaps in USKPSPatioWallColumn.NIF which were showing for some reason in its last remaining instance (Tamriel -18,25, Solitude entrance)
Closed several seethrough areas of missing polys under the eaves, replaced a very incorrect texture mapped column face with the correct stone texture and removed a blue strip of missing texture on a windowframe on the Clan Cruel-Sea house in Windhelm (Meshes\Architecture\Windhelm\WHClanCruelSea.NIF)
Corrected wrong texture on a wall section, closed two seethrough vertical gaps on a wall section and removed overly dark vertex colors on another wall of Windhelm wall/arch component Meshes\Architecture\Windhelm\WHStoneQuarter.NIF
Fixed bad UV mapping on several of the smaller rocks of Meshes\Landscape\Rocks\RockPileM02.NIF (and 32 variant objects that use this mesh) and Meshes\Landscape\Rocks\RockPileM02Tundra.NIF
Eliminated Z-fighting flickering from overlapping and duplicate faces on Tamriel road pieces Meshes\Landscape\Roads\RoadCurveLong45LRamp01/02.NIFs, RoadCurveLong45RRamp01/02.NIFs, RoadSCurveR01.NIF, RoadSCurveRamp01.NIF, RoadStraight02Down01.NIF, RoadStraightLong01/02.NIFs, RoadStraightLongRamp01/02.NIFs, RoadStrToCurveRampL/R01.NIFs

Placement/Layout/Ownership and other World Object Fixes
Moved a bench (650E3) in the Dark Brotherhood Sanctuary that was too close to the (sloping) wall, so the camera would go through the wall into the void when the player sat down or stood up
Refixed the unusable bench in Whiterun's Bannered Mare (60343) so that it can finally be sat on

Text Fixes
Corrected loading screen CityWhiterun04 BC2E7: "The large tree in Whiterun's Wind District is called the Gildergreen,..." ("The large tree" » "The tree") [it may not be large if the Blessings of Nature quest has been completed]