having trouble installing 10g

[George]

cross posted to comp.database.oracle by mistake.

I'm getting the infamous ora 12154 - TNS could not resolve connect
identifier error.
My computer is running windows 2000 pro in standalone mode (not connected to
a network).
I used the oracle 10g install program to install the software without the
database
and everything went fine.
I then used the assistants to set the parameters for the listener etc.
Next I attempted to install a database using the database configuration
assistant).
I called the database 'test' and used the default values.
during the copying database phase I got the following error messages:

ora 12154 - TNS could not resolve connect identifier.
ora 01031 - insufficient privileges

Thanks in advance for any assistance in resolving this.

My configuration files are listed below:

hosts file:
127.0.0.1 localhost
10.10.10.10 mycomputer.com # loopBack for oracle

Installed a Microsoft loopback adaptor with a network address of 10.10.10.10
submask: 255.255.255.0

The loopback is configured with tcip, and set as the first connection in the
list of connections.

# tnsnames.ora Network Configuration File:

TEST.MYCOMPUTER.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = mycomputer.com)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = test)
)
)
------------------------------
# listener.ora Network Configuration File:
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mycomputer.com)(PORT = 1521))
)

TRACE_LEVEL_LISTENER = ADMIN
---------------------

sqlnet.ora Network Configuration File:

SQLNET.AUTHENTICATION_SERVICES= (NTS)

TRACE_LEVEL_CLIENT = USER

NAMES.DIRECTORY_PATH= (HOSTNAME, TNSNAMES, EZCONNECT)

TRACE_LEVEL_SERVER = USER

NAMES.DEFAULT_DOMAIN = mycomputer.com