Ubuntu one - can't sync files

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http://askubuntu.com – I have signed up for the Ubuntu one service today. I have been using Ubuntu lucid on my computer for a long time . I just find the Ubuntu one storage and sync service recently and i would like to set that for my backups. I have been trying to fix the sync problems since morning. It is afternoon now. I tried to add computer on my account as needed. I had to install client tool first to make that work. Now i am not able to add any files to Ubentuone sync. When i try to add file/folder for sync on U1, it doesn't say anything. It doesn't start syncing file/folder too. Here is the status of my (HowTos)