I have the same problem. I find it helpful to pick out a small bright spot in the image (catchlight in the eye for example) and focus for that as it tends to "snap" into focus more readily than textures or some other focusing point.
Tom Reese Keith Whaley wrote: "I understand his concern. When out of focus, the screen is still too clear, and the scene is not broken up enough. Ideally, the viewing screen would break up into fragments sooner, making the out-of-focus area quite evident..."
