Rich: I'm very frustrated. This is the first command I'm instructed to enter in this exercise -- and it fails! I can't get past the "Device or resource busy" message. The only "devise or resource" I can discover to be "busy" is apparently the x-term itself -- which I assume I need to have operational in order to enter the command. Where do I look on my 880 to see if perhaps something else is "busy", and what characterizes a "device or resource" which could be "busy?. I expect I'm asking too much of you, or anyone else reading this. But, as I said, I am frustrated. Thanks for your interest. Jim