cannot see organised files anymore

Hi, after changing my email address in my Mendeley account, I cannot anymore see my pdfs within Mendeley desktop. I can log in regularly, and references are ok. But they are not anymore connected to the pdf files. The "Preferences - File Organizer" panel still point to the correct folder. I am using Mendeley 1.10.3 for Mac (upgraded this morning with no problem). Any suggestion? Thanks, Gabriele