Blogger question

I've wasted too much time trying to figure this out - so I am going to waste a post on a boring blog question in hopes that some one can help me. I am not able to leave blog comments on the newer style comment forms (the ones embedded at the bottom of the posts). Any body know why or what I might need to change in my settings to be able to do so? The problem seems to occur with blogs that were started within the last 6 months or so. I can write the comment, but it just won't post. Also, the quick editing tool is no longer working on my blog. I have it enabled in my settings, but it's just not there any more. Any thoughts on this? Trying.not.to.throw.my.computer.out.the.window.