[Leica] Need Help

[Karen Schreiber]

My husband and I are going to Budapest, Prague, Dresden and Berlin with
brother and sister-in laws Friday September 16th on a United flight. Since
on United there is no entertainment except by iPhone, iPad, you have to
download the United app and you can get to it on the Mac Book Pro if you
have OS 10.10. Well I had Mavericks and downloaded El Capitan. Everything
is awful, no Light Room 5 shows up, nothing is the same. Is Yosemite better?

Should I go back to Mavericks? How do I uninstall? We leave tomorrow night
 3pm PST and I have a hard time using my computer. I HATE the way
everything works. I don't mind change, but the way the software is-it is
not better!!

Yes, this is a photographic post. I am taking a camera, luckily I don't
have to learn anything about using my camera.

Thanks, Karen Schreiber