So I'm running the 306.97 nVidia drivers on an GTX560Ti and when I get into caves or places with steep terrain, rotating the camera angle sometimes makes the terrain go semi-transparent. This wasn't an issue with the drivers that were out when the game was released, but was since the beta drivers that Arenanet recommended.
I've reported the issue ingame as a bug, but not heard anything about it on the forums.
Does anyone else have this problem or could give me any suggestions on how I might fix it? I tend to run the game with all the settings on max. I'd rather not roll back my drivers, but I will if there are no other solutions.
Update as suggested
Going through the various options,
* Terrain detail on low shows more transparency.
* Reflections none fixes the problem!
* Render sampling to either subsample or supersample fixes the problem!