I'm using CS4 and am trying to make an animated GIF. I've got it all set up and when I play it in Photoshop everything is fine. I then go to File > Save for web and then choose GIF in the dialog box and leave all other boxes alone. In the Optimized window my images are missing and only a grey box is shown. When I hit Save and then open the resulting GIF in a browser, all I get is that grey box and not the animation with my 8 frames. What am I doing wrong? Thanks.