1. Close all web browser windows but one.
2. In that window, clear all of your cookies, cache, passwords, everything (in my IE browser, I go to Tools, then Internet Options, then under Browsing History I click “Delete” and leave all boxes checked and click “Delete” again).
3. Then go to www.blogger.com and login, but here’s the catch, make sure you DO NOT check the box for “remember me.” If that box is checked, you must uncheck it.
4. Then you can go to any Blogger blog and you’ll be able to comment as yourself again.
As a plan B, you can do like I did and download Firefox . This web browser seems to have less problems with certain functions than Explorer. Thanks and good luck!