I am unable to create a pdf file using Autocad 8 mechanical desktop and Acrobat 5. I have been through all of the procedures from Adobe and I still cannot create the file. I get to the point where I am asked to give the file a name. I see the plotter progress bar briefly and then it closes. It does not look like it completes the process. It just goes away. No error message, but no file. Thanks Matt Maggio