Just thought I would throw my 2 cents in. The answers are correct, but to describe what the problem is for ya, Photoshop uses up to 5 times the image size in hard drive space, and that's what it's calling a "scratch disk". When you get this error, it just means as stated above, your hard drive is too full. If your image is 10 meg in size, you will need 50 meg free to work on it. So, before all the other troubleshooting steps, look to see how much space you have, then in PShop, go to Image > Image Size and see what the pixel dimension is. Make sure you're not accidentally working on a 1200dpi image or something. :) (It's happened) If it's for wallpaper and screen, keep it to 72dpi, if it's for print, try to stay around 150, (or 300 if size isn't a problem) Also, make sure that your height and width is OK. I had this problem with one person years ago that insisted his image was only 800 by 600. When I had him check, it was in inches, (at 300dpi.) Hope that helped without seeming intrusive. (PSTekky = Photoshop Tek grin) It's been a few years, but I still remember most of the tech questions. Hope I can help here.