Strange Bug in Flash Player 8/9 on Mac

I have this Script:


if (_root.mode == 2)
{
    lader = new LoadVars();
    lader.id = _root.id;
    lader.window = _root.window;
    lader.laps = _root.rounds;
    lader.time = _root.Gesamtzeit;
    lader.realtime = _root.zwischenzeit;
    lader.ghostx = _root.newGhostX.join("|");
    lader.ghosty = _root.newGhostY.join("|");
    lader.ghostz = _root.newGhostZ.join("|");
    lader.action = "set_league";
    lader.onLoad = function (geladen)
    {
        if (geladen)
        {
            _root.tester = 1;
        } // end if
    };
    lader.sendAndLoad("../xtras/flash/action.php", lader, "POST");

On Windows Machines the Vars are written to a Database. On Mac no data is received by the Server using Flash Player 8 and 9.

Anyone knows sumthing about this problem???

thanx in advance