Thanks to Crystal S for making me aware of a small imperfection in my Clipping Warning action. I've fixed it now, and it shouldn't give you any more grief, Crystal :)
If anyone hasn't tried my action, give it a go. It's a simple way to check for clipping and near-clipping while you're processing your images in Photoshop. (It doesn't work in Elements, but I've provided a PSD which serves the same purpose).
I've only tested it in a couple of versions of Photoshop, so if anyone finds any problems with it, please let me know immediately.
Ps - I'm working on another handy little action too. Stay tuned!