I have finally added to my Understanding section a few steps on how to give your images a boost using the unsharp mask. This technique can be used on any image but remember, less is more. Although I don't shoot in JPEG too often, this is the method I use to remove a grey caste that occurs in JPEG images from the Canon 10D. This problem has not occurred very often and I think it may have been addressed in a firmware update for this camera. Either way, it's a great way to give your images a little pep. Give it a try and let me know what you think.