Using Opera, the initial login returns to the login screen.  A refresh will
then go to the "main" GNATs screen.  "logout" has the same problem.  IE does
not have this problem.  The login reply is a refresh with a new cookie.  The
refresh is expected to make the same URL request with the new cookie.  I am
guessing that Opera does not behave the same as IE in this respect.  Perhaps
Opera is not passing the new cookie until the manual refresh.

Have others seen this problem?

Should gnatsweb.pl be changed to return the cookie with the "main" page
instead of causing the browser to initiate a refresh?

Does this make any sense?

Stuart