Menu doesn't show up on left click

[fran-penedo]

I'm having a weird behaviour, posibly because of having a dirty upgraded version of gnome-shell 3.4. The thing is, when I left click on the button, the menu doesn't show up. But if I right click, a menu with the option for settings shows up. And the weirdest thing is, if after I right click the button, I left click it, then a menu with Home, Desktop and Trash shows up. Nothing else is listed, even if Bookmarks and Devices are checked in settings page.

If you want to try solving this, just ask me for anything you need. Neither of both places extensions work for me and as I'm used to the places menu for gnome2, this extension is a must have.