Blogger Issues

Is anyone else having problems with blogger? I sign in so that I can comment on a blog and then it won't let me post and I'm signed out. It's so annoying I haven't been able to post on anyone else's blog for over a week. I thought it might be because of my computer but then I was reading another blog this morning and she mentioned she was having the same problem! I get so annyoed at blogger sometimes. I am reading all the blogs I usually do, I just can't comment!