I have tried save and render and I am using the play button in the Layout page. It works once, like I said.. then when I click on it, it looks like it is playing, as in it changes to the pause symbol ( ll ), but it isn't. When this happens, I noticed that in the setup tab I can no longer add anything. It greys out all the buttons but the Save. Clicking on that yields nothing. I have to restart XL in order to clear it up.