"An error occured trying to login to CCloud"

Hi, On the above subject since installing from scratch the lastest release (v4.1.2.28) I am receiving this error when I try and login to ‘Online Storage’. However I can log into ‘Account Settings’ fine. My Comodo account has not expired. I have tried several clean installs and every time I get this error. I can login via the web fine. I am running Win 7 x64. Please can you advise. Many thanks. Gareth