I did this playing with the Picasa widget from Google, a photo editor and library system that you get for free. I have only used MS Paint for my photos on this my organ so being able to straighten out a horizon is a treat. Now that We all know that Google is going to take over every aspect of our lives over the next few months, I might as well give in to the borg. Lord Goog is merciful and bountious. I must go leave some fruit at the Goog alter.