Index: code/nebula/neb.cpp
===================================================================
--- code/nebula/neb.cpp	(revision 10788)
+++ code/nebula/neb.cpp	(working copy)
@@ -334,6 +334,13 @@
 		return;
 	}
 
+	// Skip actual rendering if we're in FRED.
+	if(Fred_running)
+	{
+		Neb2_render_mode = NEB2_RENDER_NONE;
+		return;
+	}
+
 	// if the mission is not a fullneb mission, skip
 	if ( !((The_mission.flags & MISSION_FLAG_FULLNEB) || Nebula_sexp_used) ) {
 		Neb2_render_mode = NEB2_RENDER_NONE;
@@ -341,7 +348,7 @@
 		return;
 	}
 
-	if ( (Cmdline_nohtl || Fred_running) && (The_mission.flags & MISSION_FLAG_FULLNEB) ) {
+	if ( (Cmdline_nohtl) && (The_mission.flags & MISSION_FLAG_FULLNEB) ) {
 		// by default we'll use pof rendering
 		Neb2_render_mode = NEB2_RENDER_POF;
 		stars_set_background_model(BACKGROUND_MODEL_FILENAME, Neb2_texture_name);