--- a/gfxinit.c	Tue Oct 24 12:56:14 2006 +0000
+++ b/gfxinit.c	Tue Oct 24 13:08:52 2006 +0000
@@ -21,7 +21,7 @@
 } MD5File;
 
 typedef struct FileList {
-	const MD5File basic[5];     // grf files that always have to be loaded
+	const MD5File basic[4];     // grf files that always have to be loaded
 	const MD5File landscape[3]; // landscape specific grf files
 } FileList;
 
@@ -344,6 +344,9 @@
 		);
 	}
 
+	assert(load_index == SPR_SIGNALS_BASE);
+	load_index += LoadGrfFile("nsignalsw.grf", load_index, i++);
+
 	assert(load_index == SPR_CANALS_BASE);
 	load_index += LoadGrfFile("canalsw.grf", load_index, i++);