sqlplus error

From: Lee Kang Won <newton_at_3rsoft.com>
Date: Thu, 28 Oct 1999 04:16:27 GMT
Message-ID: <3817CE71.86E9ED68@3rsoft.com>

Following is error message when I tried 'sqlplus' . If execute sqlplus from 'oracle' user, it works alright. I installed Oracle 8.0.5 for linux and linux is of package 'RedHat 6.0'

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[jerry_at_newton ~/sql]$ sqlplus

SQL*Plus: Release 8.0.5.0.0 - Production on Thu Oct 28 13:15:23 1999

(c) Copyright 1998 Oracle Corporation. All rights reserved.

Enter user-name: scott
ERROR:
ORA-06401: NETCMN: invalid driver designator

Enter user-name: Received on Wed Oct 27 1999 - 23:16:27 CDT