Before upgrading to 14.04 when I clicked on a file in the dash, it opened the file.
This still happens on my 12.04 machine.
In 14.04 when I click on a file in dash search results, it offers me 3 options: 'Email', 'Open' and 'Show in Folder'.
How can I get back the previous behaviour - i.e. to immediately open the files on the first click?