Re-enable TCP/IPX selector buttons.

Re-enable the TCP selector button and unhide the IPX selector button.
Attempting to select IPX brings up a pop-up that IPX is no longer supported.

Author: jg18

code/menuui/optionsmenumulti.cpp

@@ -714,13 +714,6 @@ void options_multi_load_protocol_controls()
 	Om_ip_input.hide();
 	Om_ip_input.disable();
 
-	// disable/hide IPX button since IPX is no longer supported
-	Om_pro_buttons[gr_screen.res][OM_PRO_IPX].button.disable();
-	Om_pro_buttons[gr_screen.res][OM_PRO_IPX].button.hide();
-
-	// disable TCP button since it's the only option
-	Om_pro_buttons[gr_screen.res][OM_PRO_TCP].button.disable();
-
 	// bogus control
 	Om_pro_bogus.base_create(Om_window, UI_KIND_ICON, 0, 0, 0, 0);
 }
@@ -776,13 +769,6 @@ void options_multi_enable_protocol_controls()
 		Om_pro_buttons[gr_screen.res][idx].button.unhide();		
 	}
 
-	// disable/hide IPX button since IPX is no longer supported
-	Om_pro_buttons[gr_screen.res][OM_PRO_IPX].button.disable();
-	Om_pro_buttons[gr_screen.res][OM_PRO_IPX].button.hide();
-
-	// disable TCP button since it's the only option
-	Om_pro_buttons[gr_screen.res][OM_PRO_TCP].button.disable();
-
 	// unhide and enable the tracker input boxes
 	if(Om_tracker_flag){
 		Om_tracker_login.enable();	
@@ -1126,7 +1112,8 @@ void options_multi_protocol_button_pressed(int n)
 
 	// ipx mode, no longer supported
 	case OM_PRO_IPX:
-		Assertion(false, "IPX protocol button pressed even though hidden!");
+		gamesnd_play_iface(SND_GENERAL_FAIL);
+		popup(PF_USE_AFFIRMATIVE_ICON, 1, POPUP_OK, "The old IPX protocol is no longer supported.");
 		break;
 	}
 }