diff -r f5c4d3c04b5d -r 187142ff9b6c src/cheat_gui.cpp
--- a/src/cheat_gui.cpp	Fri Jul 18 16:26:51 2008 +0000
+++ b/src/cheat_gui.cpp	Fri Jul 18 16:40:29 2008 +0000
@@ -44,8 +44,8 @@
  */
 static int32 ClickChangePlayerCheat(int32 p1, int32 p2)
 {
-	while (IsValidPlayerID((PlayerID)p1)) {
-		if (_players[p1].is_active) {
+	while ((uint)p1 < GetPlayerPoolSize()) {
+		if (IsValidPlayerID((PlayerID)p1)) {
 			SetLocalPlayer((PlayerID)p1);
 
 			MarkWholeScreenDirty();