I know this is an odd place to ask but - why can't I post comments on other people's blogs? I am logged in to blogger but when I write a comment, I am asked to choose a profile. When I choose either my google account or live-ID, I am thrown to the google login window. After I type in my name and password, I get returned to my comment preview (but the name says Anonymous) and nothing I do will cause the comment to post. Every time I hit 'post', I am brought back to the login window. This even just happened on my own blog, when I tried to reply to a comment that was just made to Cheryl.
I have occasionally been able to post comments in the past but I can't see anything that was done differently. Can anyone help?