Forms 10g login to XE database

Hi
I have installed XE database followed by the 10g development suite. I have unlocked the hr account and am able to do the following.
I can access the database through SQL*PLUS and can connect using Reports10g.
I can also use SQL Developer to explore the database.
The problem comes when I try and connnect through forms using the same default hr login. The error returned is ORA-12532 TNS:invalid argument.
Tnsnames is:-
XE =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = hostname)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = XE)
Any help.
Thanks.

Hi
All sorted now.
Mcafee personal firewall+ had oracle forms builder blocked. Gave it full access and can now connect, create and run a form.
Regards and all the best to you all.
Phil

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