A few nights ago I used screen for a very log running task. The man page tells me, "... When screen is called, it creates a single window with a shell in it (or the specified command) and then gets out of your way so that you can use the program as you normally would. Then, at any time, you can create new (full-screen) windows with other programs in them (including more shells), kill existing windows, view a list of windows, turn output logging on and off, copy-and-paste text between windows, view the scrollback history, switch between windows in whatever manner you wish, etc."
When I used it after screen started the command it returned me to the shell prompt, $. Since then, when I've started a screen session with the command to run it gives me a couple of line feeds and no prompt. What might I be doing incorrectly? TIA, Rich