Gosh, a computer question I can answer-whoopee, hope I get it right.......
Barbara, save the picture in "your pictures" or "documents" or wherever. Then open the file and on the left will be an option of saving it as screen saver. And then your computer will be as pretty as mine, I saved it too. Ang needs to copywrite it!!
So glad you had fun in Alaska. Sitka is so cool, probably on of the best walking towns, everything is right there. Looks like your timing was good too, there is a big old low system out there and it looks really rainy and windy for a few days.
Come back and see us,
Nan