Eclipse ctrl+right does nothing

Eclipse ctrl+right does nothing

I'm editing a Java source in Eclipse (Version: Kepler Release). I'm used
no navigate text on other editors using ctrl+right to move to the next
word and ctrl+shift+right to select the next word. But on eclipse nothing
happens, the cursor stays in the same place.
On Window->Preferences->General->keys the binding seems to be correct, it
says: Command: Next Word; Binding: Ctrl+Right; When: Editing Text;
Category: Text Editing.
But it's not working.