Muzle84

If you also have flying objects when loading a cell, a disabled Vsync might be the cause. Check your slyrim.ini file, Display section: change iPresentInterval=0 to iPresentInterval=1 Also, VSync might be disabled in your GC driver.

Typical HF bug... Your dragon skull is wandering somewhere in Cyberpsace and the stand is still considered as occupied. If you play on PC, console is your friend: disable and enable your stand (save first in case enable fails).

Yes, surely a registrery entry issue: 'ProfilesDirectory' (and 'Default' and 'Public') still poitning to your first SSD. Software such as Skyrim use this system setting unless there is an option inside the software itself to change this location. Have a look at http://www.nextofwindows.com/how-to-change-user-profile-default-location-in-windows-7/ or http://www.sevenforums.com/tutorials/87555-user-profile-change-default-location.html Take care before changing registrery entries! Create a 'restoraion point' before.

Exterior Cell Buffer=64 uGridsToLoad=7 INI => potential CTDs (and "INI" after "7" is very strange) iPresentInterval=0 Disabled VSync => potential UFOs (flying objects when you load a cell) I bet on this one for your squeezed horse. [MapMenu] uLockedObjectMapLOD=8 uLockedTerrainLOD=8 => Potential pink loading screens and menus

These symptoms are similar to the ones because of VSync disabled. As you mention a fresh install, check your CG driver first and enable VSync if it is not. Also, you may look at skyrim.ini (or SyrimPrefs.ini, can't remember): iPresentInterval should NOT be set at 0 in Display section (But default is 1 for a fresh install, so...) Last: look at your Skyrim/Data folder for any .ini file. To my knowledge, there should not be any .ini file there. Move it/them to a temporary backup place as a test (even if name is dragonborn.ini).

Many thanks for your answer Montbello Knight. Just to be sure, you mean deleting the FormID and any occurence of this light object will disappear from the whole Skyrim world? I'd rather start a new game then :-) Really no way to get RefID with a save editor tool?

To what I have read in this thread, it is a navmesh issue. NPCs have predetermined pathes to use and destroying floors break them. I know you need CK to fix that, but I can't help for that, sorry.

I have flickering lights inside my Windstad house (Hearthfire), surely because I played with console to add a light source at the roof chandelier. Same issue in cellar. As light sources are invisible, I don't know how to remove them with console because there is no way to select them. CK does not edit save games and I could not find any save game editor to manage anything else than player character. Any ideas would be much appreciated. And if there is no way to fix that, well... I have been largely warned by reading various threads: "if you play wirth lighting, backup first, new save, check and check again, etc." Except that I noticed this flickering a long time after having made these changes... And now it jumps out at me each time I enter my main room :-)