Default to non-buffered rendering on ARMv6 as there appear to be some devices where it causes serious issues. Bizarre but this might reduce the problem a little.

Core/Config.cpp

@@ -101,7 +101,14 @@ void Config::Load(const char *iniFileName)
 #else
 	graphics->Get("ResolutionScale", &iWindowZoom, 1);
 #endif
-	graphics->Get("RenderingMode", &iRenderingMode, 1); // default is buffered rendering mode
+	graphics->Get("RenderingMode", &iRenderingMode, 
+		// Many ARMv6 devices have serious problems with buffered rendering.
+#if defined(ARM) && !defined(ARMV7)
+		0
+#else
+		1
+#endif
+		); // default is buffered rendering mode
 	graphics->Get("HardwareTransform", &bHardwareTransform, true);
 	graphics->Get("TextureFiltering", &iTexFiltering, 1);
 	graphics->Get("SSAA", &bAntiAliasing, 0);