I have added some screenshots. Don't know if the 'open file' dialog is part of Nautilus. But here is what happens.
** Attachment added: "bug jpg.odt" https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1095321/+attachment/3493945/+files/bug%20jpg.odt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1095321 Title: Capital JPG extension not recognized as pictures Status in “nautilus” package in Ubuntu: Incomplete Bug description: When accessing my photo's stored on my home directory e.g. when I want to upload them to the web, or an online photoalbum files with a JPG (all capitals) extension are not recognized as images. When I change the extension to jpg (no capitals) the very same files are recognized as images. The dialog box shows 'images' and I can't select the 'all files' option - this could perhaps also solve the problem. I have found a really old bug description that seems to report the exact same problem. https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/221409 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1095321/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp