Fixed! I believe I had the same problem on my Lucid install and I was able to fix it!
By watching the System Monitor I was able to identify that the client would Freeze when trying to log in, and then it would stop responding. To solve that, I first tried to reinstall the package and also cleaning ubuntuone cache but it didn't work. Later I found one simple instruction that solved the Freezing issue and now my files have been synchronized successfully. By researching other bugs related to ubuntuone I realized that some times users would be indicated to do the following: Log in at ubuntu one website! Open Terminal! On terminal type: sudo apt-get install ubuntuone-client-tools and then u1sync --authorize This will install "Ubuntu-client-tools" package and then open the browser to ask for your credentials on Ubuntu one website. I suggest you to be logged in on the website before doing it. ubuntuone.com I still not sure why Ubuntuone was Freezing when trying to log in. I also noticed that on the Ubuntu one preference window it was showing "Unknown" where it was supposed to show the user account information. I tested a very small file (feel bytes) and it took more then 5 minutes to show on Ubuntu one to the point I was able to go to the website and see the file with an Uploading status! But that is another problem! I hope this will be helpful for those in trouble! Have a good day! -- Ubuntu One Preferences freezes when opened https://bugs.launchpad.net/bugs/568826 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs