diff --git a/OpenGL.cpp b/OpenGL.cpp
index 8b183366..03a3dcdf 100644
--- a/OpenGL.cpp
+++ b/OpenGL.cpp
@@ -798,6 +798,7 @@ void OGLRender::drawLLETriangle(u32 _numVtx)
 	glDrawArrays(GL_TRIANGLE_STRIP, 0, _numVtx);
 	triangles.num = 0;
 
+	gDP.colorImage.changed = TRUE;
 	gSP.changed |= CHANGED_VIEWPORT | CHANGED_GEOMETRYMODE;
 
 #ifdef __TRIBUFFER_OPT
diff --git a/VI.cpp b/VI.cpp
index 62f20ee1..1bce6e41 100644
--- a/VI.cpp
+++ b/VI.cpp
@@ -129,9 +129,15 @@ void VI_UpdateScreen()
 			}
 			frameBufferList().renderBuffer(*REG.VI_ORIGIN);
 
+			if (gDP.colorImage.changed)
+				uNumCurFrameIsShown = 0;
+			else {
+				uNumCurFrameIsShown++;
+				if (uNumCurFrameIsShown > 25)
+					gSP.changed |= CHANGED_CPU_FB_WRITE;
+			}
 			gDP.colorImage.changed = FALSE;
 			VI.lastOrigin = *REG.VI_ORIGIN;
-			uNumCurFrameIsShown = 0;;
 #ifdef DEBUG
 			while (Debug.paused && !Debug.step);
 			Debug.step = FALSE;
diff --git a/gSP.cpp b/gSP.cpp
index 1fc3c3d0..2030ca1b 100644
--- a/gSP.cpp
+++ b/gSP.cpp
@@ -2042,7 +2042,6 @@ void gSPDrawObjRect(const ObjCoordinates & _coords)
 	vtx3.t = _coords.lrt;
 
 	render.drawLLETriangle(4);
-	gDP.colorImage.changed = TRUE;
 	gDP.colorImage.height = (u32)(max(gDP.colorImage.height, (u32)gDP.scissor.lry));
 }