diff --git a/core/rend/gles/gles.cpp b/core/rend/gles/gles.cpp
index 946550598..fc0191b0a 100755
--- a/core/rend/gles/gles.cpp
+++ b/core/rend/gles/gles.cpp
@@ -483,6 +483,10 @@ gl_ctx gl;
 
 int screen_width;
 int screen_height;
+
+int currentScreenWidth = -1;
+int currentScreenHeight = -1;
+
 GLuint fogTextureId;
 GLFramebufferData fullscreenQuad;
 
@@ -1634,15 +1638,16 @@ void fullscreenQuadCreateTemporaryFBO(float & screenToNativeXScale, float & scre
 	// Generate and bind a render buffer which will become a depth buffer
 	if (!fullscreenQuad.framebufferRenderbuffer) {
 		glGenRenderbuffers(1, &fullscreenQuad.framebufferRenderbuffer);
+	}
+	if (currentScreenWidth != screen_width || currentScreenHeight != screen_height) {
+
 		glBindRenderbuffer(GL_RENDERBUFFER, fullscreenQuad.framebufferRenderbuffer);
 #ifdef GLES
 		if (isExtensionSupported("GL_OES_packed_depth_stencil")) {
 			glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8_OES, screen_width, screen_height);
-		}
-		else if (isExtensionSupported("GL_OES_depth24")) {
+		} else if (isExtensionSupported("GL_OES_depth24")) {
 			glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24_OES, screen_width, screen_height);
-		}
-		else {
+		} else {
 			glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, screen_width, screen_height);
 		}
 #else
@@ -1661,6 +1666,10 @@ void fullscreenQuadCreateTemporaryFBO(float & screenToNativeXScale, float & scre
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, screen_width, screen_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
 	}
+	if (currentScreenWidth != screen_width || currentScreenHeight != screen_height) {
+		glBindTexture(GL_TEXTURE_2D, fullscreenQuad.framebufferTexture);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, screen_width, screen_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
+	}
 
 	// Create the object that will allow us to render to the aforementioned texture (one for every rtt texture address)
 	if (!fullscreenQuad.framebuffer) {
@@ -2039,6 +2048,8 @@ bool RenderFrame()
 		}
 		else {
 			fullscreenQuadCreateTemporaryFBO(screenToNativeXScale, screenToNativeYScale);
+			currentScreenWidth = screen_width;
+			currentScreenHeight = screen_height;
 		}
 #endif
 	}
@@ -2089,7 +2100,7 @@ bool RenderFrame()
 		printf("SCI: %f, %f, %f, %f\n", offs_x+pvrrc.fb_X_CLIP.min/scale_x,(pvrrc.fb_Y_CLIP.min/scale_y)*dc2s_scale_h,(pvrrc.fb_X_CLIP.max-pvrrc.fb_X_CLIP.min+1)/scale_x*dc2s_scale_h,(pvrrc.fb_Y_CLIP.max-pvrrc.fb_Y_CLIP.min+1)/scale_y*dc2s_scale_h);
 	#endif
 
-	if (settings.rend.VerticalResolution == 100 && settings.rend.HorizontalResolution == 100) {
+	if (is_rtt || (settings.rend.VerticalResolution == 100 && settings.rend.HorizontalResolution == 100)) {
 		if (settings.rend.WideScreen && pvrrc.fb_X_CLIP.min == 0 &&
 			((pvrrc.fb_X_CLIP.max + 1) / scale_x == 640) && (pvrrc.fb_Y_CLIP.min == 0) &&
 			((pvrrc.fb_Y_CLIP.max + 1) / scale_y == 480)) {