--- a/src/proto2/Graphics.cc	Wed Dec 03 16:47:17 2008 +0000
+++ b/src/proto2/Graphics.cc	Wed Dec 03 18:59:10 2008 +0000
@@ -74,8 +74,8 @@
     // Draw terrain
     state.draw(gc);
 
-    // Flip window buffer, LIEK NAO
-    win.flip(0);
+    // Flip window buffer, sync
+    win.flip(1);
 }
 
 void Graphics::on_update (void) {