so i've been using CS3 for a few years now and just switched the CS5....i dont think the version matters for this though. I have a photo in PS, i select an area (using quick select) and ctrl+j to get it into its own new layer. I'll then hide the background layer clicking the eye off, and manipulate the new layer. Say i do a photo filter, some curves and a gradient to it. I then merge all visible and have my what was selected layer all done and ready to go. I then make my background reappear and all of a suddent he changes i made to the new layer with the filters and gradient, they change the ENTIRE background, not just the selection area I had previously created. What am i doing wrong here?