Bugs?

Something is still really wrong with blogspot. When I sign in I get my dashboard, I can read other blogposts. I can post my own new post. I am signed in. But.....when I click to view my blog....it say's "sign in". I can read my post but if I try to reply to a comment...it asks me to sign in, so I sign in again, type my reply and click. It show's my post as "anonymous" and when I click again......it disappears. So long story short, this has been going on for a number of weeks and I can't seem to get it too change. If you commented, I have replied but it just won't stick!!!
Is any one else having this issue??