diff --git a/Core/Host.h b/Core/Host.h
index f13f378a5a..591686c342 100644
--- a/Core/Host.h
+++ b/Core/Host.h
@@ -44,6 +44,7 @@ public:
 
 	virtual void InitSound(PMixer *mixer) = 0;
 	virtual void UpdateSound() {}
+	virtual void UpdateScreen() {}
 	virtual void ShutdownSound() = 0;
 	virtual void PollControllers(InputState &input_state) {}
 
diff --git a/UI/GameSettingsScreen.cpp b/UI/GameSettingsScreen.cpp
index d7dd558e9b..71b42c4e9e 100644
--- a/UI/GameSettingsScreen.cpp
+++ b/UI/GameSettingsScreen.cpp
@@ -334,6 +334,7 @@ UI::EventReturn GameSettingsScreen::OnBack(UI::EventParams &e) {
 	// If we're in-game, return to the game via DR_CANCEL.
 	if(PSP_IsInited()) {
 		screenManager()->finishDialog(this, DR_CANCEL);
+		host->UpdateScreen();
 	} else {
 		screenManager()->finishDialog(this, DR_OK);
 	}
diff --git a/Windows/WindowsHost.cpp b/Windows/WindowsHost.cpp
index 0b8eb4f850..1dc8b3bcf3 100644
--- a/Windows/WindowsHost.cpp
+++ b/Windows/WindowsHost.cpp
@@ -159,6 +159,10 @@ void WindowsHost::UpdateUI()
 	PostMessage(MainWindow::GetHWND(), MainWindow::WM_USER_UPDATE_UI, 0, 0);
 }
 
+void WindowsHost::UpdateScreen()
+{
+	PostMessage(MainWindow::GetHWND(), MainWindow::WM_USER_UPDATE_SCREEN, 0, 0);
+}
 
 void WindowsHost::UpdateMemView() 
 {
diff --git a/Windows/WindowsHost.h b/Windows/WindowsHost.h
index 2c4d5c463a..add62b20cd 100644
--- a/Windows/WindowsHost.h
+++ b/Windows/WindowsHost.h
@@ -37,6 +37,7 @@ public:
 	void UpdateMemView();
 	void UpdateDisassembly();
 	void UpdateUI();
+	virtual void UpdateScreen();
 	void SetDebugMode(bool mode);
 
 	void AddSymbol(std::string name, u32 addr, u32 size, int type);
diff --git a/Windows/WndMainWindow.cpp b/Windows/WndMainWindow.cpp
index 4d49e0270c..727699ec48 100644
--- a/Windows/WndMainWindow.cpp
+++ b/Windows/WndMainWindow.cpp
@@ -1351,11 +1351,6 @@ namespace MainWindow
 					W32Util::MakeTopMost(hWnd, g_Config.bTopMost);
 					break;
 
-				case ID_OPTIONS_ANTIALIASING:
-					g_Config.bAntiAliasing = !g_Config.bAntiAliasing;
-					ResizeDisplay(true);
-					break;
-
 				case ID_OPTIONS_CONTROLS:
 					NativeMessageReceived("control mapping", "");
 					globalUIState = UISTATE_MENU;
@@ -1578,6 +1573,10 @@ namespace MainWindow
 			Update();
 			break;
 
+		case WM_USER_UPDATE_SCREEN:
+			ResizeDisplay(true);
+			break;
+
 		case WM_MENUSELECT:
 			// Unfortunately, accelerate keys (hotkeys) shares the same enabled/disabled states
 			// with corresponding menu items.
diff --git a/Windows/WndMainWindow.h b/Windows/WndMainWindow.h
index 1723a77c20..28ce6ac5fd 100644
--- a/Windows/WndMainWindow.h
+++ b/Windows/WndMainWindow.h
@@ -12,6 +12,7 @@ namespace MainWindow
 		WM_USER_LOG_STATUS_CHANGED = WM_USER + 101,
 		WM_USER_ATRAC_STATUS_CHANGED = WM_USER + 102,
 		WM_USER_UPDATE_UI = WM_USER + 103,
+		WM_USER_UPDATE_SCREEN = WM_USER + 104,
 	};
 
 	enum {