I originally set up my Adobe Portfolio on my laptop. I also use a desktop computer...when I wanted to update my Portfolio on my desktop, I could not get into my Portfolio at all. It only allowed me to start fresh...but that didn't work either. When I selected to start a new project/portfolio site, it would show a blank template selection page. When I selected to start a new Welcome page, it would send me back to the "make a new portfolio page." Only when I logged on with my laptop I could edit my portfolio (or do any portfolio work). Why does my Portfolio account not work on my other computer?
Sounds to me like you're not signed-in to the right account. Log-out and log-in again with the correct ID and password.
Portfolio can be accessed from any desktop or laptop device with a modern browser that accepts cookies and does not have script blockers. If you continue to have problems, use a different browser like latest Firefox or Chrome.
Nancy O'Shea, Adobe Product User & Community Professional Alt-Web Design & Publishing ~ Web : Print : Graphics : Media