Thanks alco. It created a set of directories where I specified. The old cache directory still exists and it is still very big. Any suggestions? Hmmmm; I think I need to check if this is the directory that I keep my FireFox preferences in. I have just upgraded to Win7 and reinstalled FF. This may be an inactive Cache Directory. Yup, that was it. Thanks everyone. I've set up a new clean profile and deleted the old information. It's like riding a brand new bicycle. Happy Thai New Year.