pgadmin from 9.0RC1 in 8.2.4 status cannot cast type xid to text error

I ran PgAdmin from 9.0RC1 in windows and selected

Tools/Server status for 8.2.4 server

After that messagebox with error

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pgAdmin III
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An error has occurred:

ERROR:  cannot cast type xid to text
LINE 1: SELECT transaction::text, gid, prepared, owner, database FRO...
                            ^
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OK
---------------------------

occurs after every few seconds
After some time there are hundreds of messageboxes in screen.
Message boxes continue to apper even if status window is closed.

How to fix ?

Andrus.