Okay so I have been using the diffuse glow filter for a while now to add a bit of a porcelain glow to the skin of my B&W portraits (see avatar). For some reason this filter, all of a sudden, started adding black pixels rather than white. What did I do? Anyone know how to get it back to the way it usually works. I've poked around for hours and can not figure it out. It's a massive step in my PP for my 40's Hollywood shots so I'm kind of freaking out here!! Same subject matter, same BG etc.....just black instead of bright white. Thanks!!!