I am currently wading my way through Photoshop CS3 Classroom in a Book which is brilliant. I'm stuck however on lesson 6: Masks and Channels. I've created a mask and am trying to add a gradient to the mask so the object blends into transparency with an object in another layer showing through. The mask thumbnail in the layers palette doesn't show the gradient like the book says it's supposed to and when I add a filter effect to the object, the whole object displays the filter with no transparency. I don't know what I'm doing wrong. Am I using the right gradient? I've tried them all! I've followed the instructions to the letter as far as I can see. I hope someone can help. PS. I could send the end image I'm supposed to be creating so you know what I'm on about.