I just upgraded to the latest version from the repositories (0.4.0) and haven't used mcalendar before. I installed it originally awhile back but never got around to fiddling with it. Anyway, I put in my google account info to sync, and no matter what it keeps telling me incorrect username or password. I know the login details are fine because I double checked and signed out in my desktop browser and signed back in with the exact same credentials being used on the n810. I even tried signing out on my desktop first, but still no success. I also tried the link mentioned earlier in this thread about unlocking the account where you have to answer a captcha and that didn't work either. Any ideas? Also, one little nitpick: in Help->About, "Licence" should be "License." Keep up the great work!