You are having problems running two instances of SETI because you are not first setting the Terminal window to each folder.
When you open a new Terminal window, it comes up set to your home directory. Type "cd " in a new Terminal window, drag the Seti1 folder into the window, click in the Terminal window again, and press Return. That window will now be set to the Seti1 folder. You can now type "./setiathome", it will fire up, and it's data files will be in that folder.
Do this with each additional seti folder, and get as many CLI clients running as you wish.
"su" may not work because the root user has not been enabled yet. Go to our
Seti CLI Tips page, and scroll down to the "Enable Root User" section. That should do it.
[ 12-19-2001: Message edited by: reader50 ]