I've been wondering why I've been getting no comments on my latest posts (sob!) Thought you'd all left me or something!
However I don't know what I'd done, but I'd got myself involved with a new commenting system http://js-kit.com/ which didn't send me email notifications of comments.
All is sorted out now though so I will be able to moderate comments again.
Thanks to all those who have commented over the past week or so.