Did you install the
FoV patch, assuming it wasn't already updated when you downloaded it?
If not, try installing the patch, and then leave Broken Valley and return to see if getting the game to reload the area will fix the problem. Failing that you could try reverting to a save before you first entered Broken Valley again, if you have one available and it wouldn't involve redoing too much stuff.
With FoV installed I believe a couple people did run into similar problems with the environment when returning to Broken Valley, but I couldn't find any relevant topics in a quick search.
Try emailing support@larian.com (Sunday night, if you want to keep playing over the weekend), with a description of the problem and maybe a link to this post.
If you want to check if there is anything else you can do there, here is a
map of Broken Valley, showing the locations of the generators that need to be disabled to lower all of the anti-dragon shields. Also, from the D2:ED
walkthrough;
Location: Broken Valley
-To disable the anti-dragon zone around the mine, you'll need to find a
generator just west of the mine and flip a nearby lever in human form.
-Another lever can be found just southeast of Lord Lovis' tower.
-The next zone to disable requires you to land in the area only accessible
after flipping the prior lever (west of Lord Lovis' tower, just north of the
still active zone). Find and use a teleporter after you land, then locate and
flip the lever at the top of the new area to disable all but one remaining
anti-dragon zone.
-Next, disable the barrier by landing on a platform on the west side of Maxos'
temple and flipping the lever there. Geshniz's Headquarters can be accessed
via the teleporter on this platform.
-The last anti-dragon zone can be disabled by flipping a lever not too far
west of the zone itself (like the others, it's found inside of a thick-walled
fort easily visible on the map).
-Doctor Needleman is sitting on top of Lovis' Tower. You can mind read him to
gain his storage password. Find his storage south of the tower, right next to
the portal to Stone's Flying Fortress. The key to the door inside is hidden
beneath a few barrels to the right of the door. Unfortunately, the loot you
find isn't really worth the mind reading cost.
-You find a potion of wisdom on Geshniz's corpse. You can drink it to gain 5
int, but if you've chosen Allan as your alchemist, doing so will prevent you
from upgrading your alchemy garden a second time.
-The key to the chest on the middle floor of the mine office is sitting on the
left side of a desk on the top floor.
In XP the saves are in the folder
C:\Documents and Settings\ %username% \Local Settings\Application Data\Divinity 2\Savegames
or in Vista / Win 7
C:\Users\ %username% \AppData\Local\Divinity 2\Savegames
You may need to set Windows Explorer to show hidden files and folders (
XP, Vista,
Win 7).
