Cannot sign in to IDnet portal

[DarkStar]

I have been trying to sign in to the IDNet portal to have a look at my usage figures and every time I enter my Login and password and click Login I get a page come up saying "Goodbye - you have successfully logged out" 
Anyone else having problems signing in?

[Glenn]

Try clearing your cookies, then have another go.

[DarkStar]

Don't have any cookie's - FF is set to not allow cookies 
Have checked Online Armor, nothing blocked there - will have another go in a little while

[DarkStar]

Problem solved - went into FF and checked 'accept cookies from sites' and I get in OK now.
Strange that I have never had that happen before, have logged into several other sites today alone without any problems.

[Simon]

By clicking the Advanced button, you can get Firefox to just allow specific cookies.