I suspect the problem could be during the authentication between client and server, because every other stream.publish call works except for the first.
Try setting 'cookie' to false in FB.init... I reasoned that might force the init to actually contact the server
FB.init({
...
cookie: false,
...
});
Haven't thoroughly tested it, but it seems it might just work.
UPDATE: unfortunately, it seems it won't fix it for all the cases
Ivko Maksimovic
2010-08-24 19:53:06