Hi jbignert Thank you for your reply. The problem I mentioned in my last post has "evolved" into something else after many attempts to fix it (reinstalling evernote, creating a new notebook etc). I tried to use my account in my Ipad and I found out it seemed to work out. But it seems my free account doesn´t allow me to use evernote syincing in two devices, and the shared notebook simply disappeared from my laptop. Since the laptop is where I need it most, I´ve deleted evernote from the Ipad hoping that it would be restored to the laptop. Well it didn´t work. Now my friend is unable to send a new invitation to share the notebook, all I receive are chat invitations, and after acceping them I get to the evernote web environment, where I can see the shared notebook will all its contents, but... in the evernote in my computer the notebook is empty!!! My friend is a Mac user and I´m not. Could that be the problem?