I have been happily using Broken Link Checker, but with its last update, it seems to have a conflict with Comment Luv. It is trying to check the links in the comments and reporting them wrong. Then when I try to delete the link, it can't.
Plus, it has shown up a bunch of other links as broken that are not really broken (I can click on them from my blog page and they connect just fine.
AND it gives me an error message when I try to edit a link, delete a link, or do most anything.