diff -r 0b2aebc8283e -r 0b8b245a2391 src/intro_gui.cpp
--- a/src/intro_gui.cpp	Wed Jun 13 11:17:30 2007 +0000
+++ b/src/intro_gui.cpp	Wed Jun 13 11:45:14 2007 +0000
@@ -64,6 +64,10 @@
 		break;
 
 	case WE_CLICK:
+		/* Do not create a network server when you (just) have closed one of the game
+		 * creation/load windows for the network server. */
+		if (2 <= e->we.click.widget && e->we.click.widget <= 6) _is_network_server = false;
+
 		switch (e->we.click.widget) {
 		case 2: ShowGenerateLandscape(); break;
 		case 3: ShowSaveLoadDialog(SLD_LOAD_GAME); break;