pgAdmin problems

Earlier this week I installed pgAdmin 6.5.5 and today upgraded to 7.0
I hope I installed all the components (for a Win98) install correctly.
The pg database is on a remote server, accessed across the internet.
I am new to this ODBC stuff, but the past few months have been using
psql and php3 interfaces (both local access) to 6.5.3 database.

Anyway, I created a datasource in ODBC, but when I try to use it with
pgAdmin (either version), I get:
Error 3706, ADO could not find the specified provider.
function: frmODBClogon, cmdOK_Click.

If I try to link to the same source with Access'97; I get this:
ODBC--call failed.
IDENT authentication failed for user 'gwacl' (#210).

Are these both the same problem?

Frank

PS: The start-menu shortcut's created by pgAdmin install don't point to
anything!