You might check this:
1. Find "scenery.cfg" file. Open the file with notepad or similar. Find the section below.
2. The original scenery.cfg file has this.
-----------------------------------------
[Area.001]
Title=Default Terrain
Texture_ID=1
Local=Scenery\World
Layer=1
Active=TRUE
Required=TRUE
---------------------------------------
...sometimes after any ORBX install it become like this.
------------------------------
[Area.001]
Title=Default Terrain
Local=Scenery\World
Layer=1
Active=TRUE
Required=TRUE
------------------------------
revert back to original by adding
Texture_ID=1
3. Save your file
4. Run FSX.
In case this wasn't your problem try this tool to repair your standard effects:
(Avsim)
-
gauges_recovery_fsx.zip
See here:
http://library.avsim.net/search.php?SearchTerm=gauges_recovery_fsx.zip&CatID=root&Go=Search
Direct download:
http://library.avsim.net/download.php?DLID=143311
Dieter