I suspect I'm being super stupid ... but I can't work out how to allow comments to be left on my blogs. I can't see any option under Community > Blogs > Settings and editing Community > Blogs > Blogs isn't helping. I thought it might be visible as permissions under Members > Groups but Blogs isn't one of the tabbed apps.

So my blogs don't allow comments. I must have changed some setting somewhere. Can anybody shed any light on the mystery?

Thanks!

You probably want to be checking permissions, not settings.  

You'll want to set each group to allow, Don't let your guests comment.

Thanks, @Joel R. Yep, that was my thought too. I'd tried permissions and expected to find it there because that's where the similar settings for the other apps are, but Blogs in mysteriously absent:

Maybe that's a bug. It can't hurt to report it.

@jojobean: Thanks for your advice. This forum is for 4.0 though

Problem solved (courtesy of Brandon). The trick is to edit the group, not edit the group's permissions.