Comment 23 for bug 1083936

Ok, I think I know what's happening or at least how to temporarily solve it. I get rid of this issue by removing the Nemo file manager and all the Linux Mint 14 Nadia backports. I think that's what's causing the problem because Inkscape is now working as expected. All the file extensions are opening.

This problem can be fixed by removing and turning off Linux Mint backports and Romeo unstable repositories (On Mint 13 Maya).