Hi, i installed the Oracle Mac OS X Developer Release 9.2.0.1.0 on my PowerBook G3/400 without a problem, like it is described in the install intructions. I can connect to the database via sqlplus, but when i type the following command: lsnrctls stop i get the follwing error message. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ab-mac)(PORT=1521))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener MacOS X Server Error: 61: Connection refused Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=ab))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener MacOS X Server Error: 2: No such file or directory Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ab-mac)(PORT=2481))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener MacOS X Server Error: 61: Connection refused I do not know what i have done wrong. Maybe someone can help me? TIA Carlos Jose Guerrieri ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------