Disable Ctrl-Alt-L in KDE

The IntelliJ IDEA short-cut to reformat source code is Ctrl-Alt-L. This happens to lock the screen in KDE (Gnome too?). How can I disable this so IntelliJ receives the key sequence?

From stackoverflow $pageUsers[$entry.posts[0].author].name

• Under the K menu, go to the Control Center.

  Regional & Accessibility | Keyboard Shortcuts | Shortcut Schemes tab, Global Shortcuts tab.

  In the search box, type "lock", which should narrow the visible shortcuts and show the Ctrl-Alt-L one ("Lock Session").

  Underneath, click None.

  Click the Apply button.

  From Pistos

• I eventually found how to disable the lock screen key binding (Ctrl-Alt-L) in the System Setting app.

  System Settings->"Keyboard Mouse->Keyboard Shortcuts

  I had to choose the KDE component: Run Command Interface.

  I'm running KDE on Fedora Core 9.

  From $pageUsers[$post.author].name