Reply not working for me

I am having difficulty posting. Specifically when I "Reply" through Web-Post nothing seems to get through. I have searched Yahoo for settings but cant' find what I'm doing wrong.

This happened with the Radiantresources group and now with Stepone class and store tour. The only way I can post is through email or Reply to Group in Digest. And I can't do that with Step One group because that isn't there as an option.

Any suggestions on how I can resolve this?

Thanks,

Eric