Error while executing the query; ERROR: Attribute 'datlastsysoid' not found

Mr. of PgAdmin I am having problems with the connection from Windows with
pgAdmin II V1.1 against a Linux RedHat 7,0 with PostGreSQL V 7.0.2.
I am trying to connect me to the server and reports the following message

"19/09/2001 19:01:17 - SQL (template1): SELECT version(), datlastsysoid FROM
pg_database WHERE datname = 'template1'
19/09/2001 19:01:17 - Error in pgAdmin
II:frmConnect.cmdConnect_Click: -2147467259 - Error while executing the
query; ERROR:  Attribute 'datlastsysoid' not found"

I hope to have some answer to this problem.
Greetings Andrés de Barros Multitel Uruguay