Skydrive PC app cannot log in

I have the problem that I cannot log in from the Skydrive PC app on Windows 7 64bit. It says "logging in..." but it gets stuck forever. My account is *** Email address is removed for privacy ***. I tried another Skydrive account (*** Email address is removed for privacy ***) and it DO works without any problem. So I believe it is a problem with my Skydrive account *** Email address is removed for privacy ***. I tried changing DNS to public DNS but it doesn't help. I can sign in using the browser.  I have uninstalled and reinstalled the app many time, taken the skydrive address in and out of the truted sites area many times, and still I am unable to use the desktop application. Please help. Thanks a lot!