Argh... for some reason my installation of Gnome has suddenly dropped the settings for opening my applications and file preview. Now, when I try to open my files in nautilus I no longer get a nice preview thumbnail.
Similarly, when I double-click to open a file nautilus has forgetten all the file associations and I get a "Couldn't display" error message. I have to re-associate the file type with it's preferred application. Similarly, when I open my Computer folder I get a jumble of ugly icons:
Is there anyway to restore the file associations and get nautilus to start properly displaying and opening my files? Has anyone seen this before? Please , please advise?