"Open GL, is it something you have to turn on to see it work in the document window? I can't really see s difference between the image in the document window and the old unrendered image." You can select OpenGL in General Preferences. You will notice the difference right away... As long as you've set your display styles to texture shaded ;-)

Yesterday's the past, tomorrow's the future, but today is a gift. That's why it's called the present.