Comment 24 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).<<

This is not the solution at all. After I istalled some new software and after an update the problem came back. Now I can open .SVG but no .AI extensions. I'm unistalling added software one by one to see if the problem is conflict with one of them. I will report the progress asap.