Thanks! I have recently learned that often I can't post on someone else's blog unless I am signed in before I visit their blog. I also learned that I couldn't post or follow if I checked the "keep me signed in" box. I think blogger is aware of these problems. So, I never check keep me signed in and make sure I am already signed in before I read the blogs I follow or go to a new blog so I can follow and post a comment! Odd, but this is how it works!
