Index: binaries/data/mods/public/gui/gamesetup/gamesetup.js
===================================================================
--- binaries/data/mods/public/gui/gamesetup/gamesetup.js
+++ binaries/data/mods/public/gui/gamesetup/gamesetup.js
@@ -2261,6 +2261,7 @@
 	{
 		Engine.SetNetworkGameAttributes(g_GameAttributes);
 		Engine.StartNetworkGame();
+		Engine.GetGUIObjectByName("startGame").enabled = false;
 	}
 	else
 	{