can not login to comments widgets from dasboard !

Hello there,

For some time now, I try to install different comment widgets, like Intense debate and Disqus !
I am running the latest version of wordpress on my own server.
I am unable lo login to these from my blog dashboard !!
I tried to reinstall them, reset the password, in short words, everything I can think of, but no use.
The theme widgets I am running do support widgets.
And indeed, when I go to the comments menu in my dashboard, the login and pass for the comments widgets show up, but when filling in the data, I never get a connection, an thus can not work with the widget !!

Is there anything I missing here, our am unaware off?
How can I solve this?