diff -r 00490513d7b1 -r 9e8b32366bd6 src/newgrf.cpp
--- a/src/newgrf.cpp	Fri May 25 08:13:01 2007 +0000
+++ b/src/newgrf.cpp	Fri May 25 08:47:40 2007 +0000
@@ -4808,6 +4808,13 @@
 
 static void AfterLoadGRFs()
 {
+	/* Update the bitmasks for the vehicle lists */
+	Player *p;
+	FOR_ALL_PLAYERS(p) {
+		p->avail_railtypes = GetPlayerRailtypes(p->index);
+		p->avail_roadtypes = GetPlayerRoadtypes(p->index);
+	}
+
 	/* Pre-calculate all refit masks after loading GRF files. */
 	CalculateRefitMasks();