Hi Gandalf,
Maybe it is the pressure of your efforts to see ? Maybe you are reinforcing it with a thought about "I can't see it" ??
Perhaps you could try commanding "Show Me", and let it come.
Or as has been suggested already, and the most effective way in my mind.. .. to relax about it, just observe calmy and let it resolve for you. Even take your attention away from the words and look at other things before going back to see it.
Hope it resolves for you.
