Since I got such a wonderful response on my first question, I thought I'd ask another. If this is covered in memories, I apologize a thousand times, but all I found was image prep with relation to fuzziness or dull colors. Every once in a while, I'll download a magazine scan and it'll have this odd kind of "screen door" overlay that I have no idea how to improve (if there is a way). So I thought I'd ask if any of you've ever encountered this and, if so, what the best strategy for diminishing it would be. My attempts with despeckle and noise haven't helped much, but I realize I'm a beginner at this stuff.

Thank you very much.