Losing my sky setting after save
Hi and thanks for any help /advise on this issue. I have a scene I am working on, one of my first. After I saveed it and came back to it later I had lost my sky settings , this would be all of it fog, haze, ect... and to top it off it will not let me change it back again. I can change the setting but nothing changes in the scene. I have also rebuilt the scene from several component scenes and had it back mostly the way I had it, began working on adding to it and then saved it and after not liking my changes I reverted back to the earlier version....yeah loaded it back and said no do not save changes to teh bad one....lost my sky again....I have done this several times assuming I must be doing something wrong, if so I have no idea what :-) any help would be great thanks.
I attached the scene as it was befor I saved it and then again after I opened the saved file. btw when I open it it shows the first properly rendered scene in the main window and the altered (no sky setting) scene in the mini window.