diff -r 4b963391b435 -r 7d0fac8f14cd src/newgrf_engine.cpp
--- a/src/newgrf_engine.cpp	Thu Jul 17 16:38:26 2008 +0000
+++ b/src/newgrf_engine.cpp	Thu Jul 17 20:13:01 2008 +0000
@@ -454,7 +454,7 @@
 	const Livery *l;
 
 	if (v == NULL) {
-		if (!IsValidPlayer(_current_player)) return 0;
+		if (!IsValidPlayerID(_current_player)) return 0;
 		l = GetEngineLivery(engine, _current_player, INVALID_ENGINE, NULL);
 	} else if (v->type == VEH_TRAIN) {
 		l = GetEngineLivery((v->u.rail.first_engine != INVALID_ENGINE && (IsArticulatedPart(v) || UsesWagonOverride(v))) ? v->u.rail.first_engine : v->engine_type, v->owner, v->u.rail.first_engine, v);