Comment 34 for bug 751374

Can anyone still affected by this in Ubuntu 11.10 please confirm that you are not just being affected by your cached mime preferences? I have double-confirmed that 11.10 ships a fixed exo and will mark this Fix Released if ya'll confirm the above.

Do the following:
1) grep 'exo' ~/.local/share/applications/mimeapps.list
2) If it finds any such entries, please open that file, delete them manually, and save the file
3) update-desktop-database ~/.local/share/applications

Thanks to PhobosK for the heroic debugging!