Bloglines feed

I've noticed over the last week or so that when I publish a new post Bloglines seems to be picking up random posts that I haven't edited for weeks as though they have just been edited. No doubt it's an issue on the Blogger side of things. I haven't noticed it from anyone else's blog.

Has anyone else had this issue or know how I can stop it happening?

Sorry to anyone using bloglines or another aggregator that's getting blasted with old posts - I don't edit old posts so don't bother trying to find the edits! :(

(No doubt there are a couple more coming your way with this post!!) :P