diff --git a/engines/stark/gfx/driver.cpp b/engines/stark/gfx/driver.cpp
index 36643f2a5be..350db108f8b 100644
--- a/engines/stark/gfx/driver.cpp
+++ b/engines/stark/gfx/driver.cpp
@@ -66,23 +66,31 @@ void Driver::toggleFullscreen() const {
 	g_system->setFeatureState(OSystem::kFeatureFullscreenMode, !oldFullscreen);
 }
 
-void Driver::computeScreenViewport() {
+bool Driver::computeScreenViewport() {
 	int32 screenWidth = g_system->getWidth();
 	int32 screenHeight = g_system->getHeight();
 
+	Common::Rect viewport;
 	if (g_system->getFeatureState(OSystem::kFeatureAspectRatioCorrection)) {
 		// Aspect ratio correction
 		int32 viewportWidth = MIN<int32>(screenWidth, screenHeight * kOriginalWidth / kOriginalHeight);
 		int32 viewportHeight = MIN<int32>(screenHeight, screenWidth * kOriginalHeight / kOriginalWidth);
-		_screenViewport = Common::Rect(viewportWidth, viewportHeight);
+		viewport = Common::Rect(viewportWidth, viewportHeight);
 
 		// Pillarboxing
-		_screenViewport.translate((screenWidth - viewportWidth) / 2,
+		viewport.translate((screenWidth - viewportWidth) / 2,
 			(screenHeight - viewportHeight) / 2);
 	} else {
 		// Aspect ratio correction disabled, just stretch
-		_screenViewport = Common::Rect(screenWidth, screenHeight);
+		viewport = Common::Rect(screenWidth, screenHeight);
 	}
+
+	if (viewport == _screenViewport) {
+		return false;
+	}
+
+	_screenViewport = viewport;
+	return true;
 }
 
 Common::Rect Driver::gameViewport() const {
diff --git a/engines/stark/gfx/driver.h b/engines/stark/gfx/driver.h
index 8c0897b2119..ac51e7f9054 100644
--- a/engines/stark/gfx/driver.h
+++ b/engines/stark/gfx/driver.h
@@ -54,7 +54,7 @@ public:
 	 */
 	void toggleFullscreen() const;
 
-	void computeScreenViewport();
+	bool computeScreenViewport();
 	virtual void setScreenViewport(bool noScaling) = 0; // deprecated
 
 	virtual void setViewport(const Common::Rect &rect) = 0;
diff --git a/engines/stark/stark.cpp b/engines/stark/stark.cpp
index b7af3e8bbe9..13575163cda 100644
--- a/engines/stark/stark.cpp
+++ b/engines/stark/stark.cpp
@@ -338,9 +338,7 @@ void StarkEngine::processEvents() {
 		} else if (e.type == Common::EVENT_RBUTTONDOWN) {
 			_userInterface->handleRightClick();
 		} else if (e.type == Common::EVENT_SCREEN_CHANGED) {
-			_gfx->computeScreenViewport();
-			_fontProvider->initFonts();
-			_userInterface->onScreenChanged();
+			onScreenChanged();
 		}
 	}
 }
@@ -500,19 +498,19 @@ Common::String StarkEngine::formatSaveName(const char *target, int slot) {
 void StarkEngine::pauseEngineIntern(bool pause) {
 	Engine::pauseEngineIntern(pause);
 
-	if (!_global || !_global->getLevel() || !_global->getCurrent() || !_frameLimiter) {
-		// This function may be called when an error occurs before the engine is fully initialized
-		return;
+	// This function may be called when an error occurs before the engine is fully initialized
+	if (_global && _global->getLevel() && _global->getCurrent()) {
+		_global->getLevel()->onEnginePause(pause);
+		_global->getCurrent()->getLevel()->onEnginePause(pause);
+		_global->getCurrent()->getLocation()->onEnginePause(pause);
 	}
 
-	_global->getLevel()->onEnginePause(pause);
-	_global->getCurrent()->getLevel()->onEnginePause(pause);
-	_global->getCurrent()->getLocation()->onEnginePause(pause);
-
-	_frameLimiter->pause(pause);
+	if (_frameLimiter) {
+		_frameLimiter->pause(pause);
+	}
 
 	// Grab a game screen thumbnail in case we need one when writing a save file
-	if (_userInterface->isInGameScreen()) {
+	if (_userInterface && _userInterface->isInGameScreen()) {
 		if (pause) {
 			_userInterface->saveGameScreenThumbnail();
 		} else {
@@ -520,9 +518,19 @@ void StarkEngine::pauseEngineIntern(bool pause) {
 		}
 	}
 
-	// The user may have moved the mouse while the engine was paused
-	if (!pause) {
-		StarkUserInterface->handleMouseMove(_eventMan->getMousePos());
+	// The user may have moved the mouse or resized the window while the engine was paused
+	if (!pause && _userInterface) {
+		onScreenChanged();
+		_userInterface->handleMouseMove(_eventMan->getMousePos());
 	}
 }
+
+void StarkEngine::onScreenChanged() const {
+	bool changed = _gfx->computeScreenViewport();
+	if (changed) {
+		_fontProvider->initFonts();
+		_userInterface->onScreenChanged();
+	}
+}
+
 } // End of namespace Stark
diff --git a/engines/stark/stark.h b/engines/stark/stark.h
index 1c52d39e025..7a257e9775e 100644
--- a/engines/stark/stark.h
+++ b/engines/stark/stark.h
@@ -77,6 +77,7 @@ private:
 	void mainLoop();
 	void updateDisplayScene();
 	void processEvents();
+	void onScreenChanged() const;
 
 	Gfx::Driver *_gfx;
 	Gfx::FrameLimiter *_frameLimiter;