weired error with LoadVars

Hi,
the movie i made is calling 2 different asp function which update a DB and
return an updated XML if all is fine.
i'm doing this using a 'LoadVars' object, with the 'sendAndLoad' method.
when i'm testing it in the working environment all works fine. when i'm
testing it inside a browser (after i put my swf in the local server), one of
the functions does what its suppose to do, however the other one keeps
failing...

this is my code basically:

var setData:LoadVars = new LoadVars();
setData.onLoad = function(ok) {
if (ok) {
trace("ok");
} else {
trace("fail");
}
}
...
function updateImp(){
var params = "setImp&id="+impId;
params+="impText="+impText;
...
setData.sendAndLoad(aspPath+"calendarFunctions.asp?f="+params,setData)
}

function updateTraining(){
var params = "setTraining&id="+trainId;
params+="trainText="+trainText;
...
setData.sendAndLoad(aspPath+"calendarFunctions.asp?f="+params,setData)
}

both function work fine in the authoring environment, however only the first
one functions online, the second one always returns 'fail' in the 'onLoad'.
just for testing, i replaced in the second function the 'sendAndLoad' with
just 'send' -
'setData.send(aspPath+"calendarFunctions.asp?f="+paramsList,"_blank");' -
and guess what, in the window that was opened i got the XML i was expecting
to...
on the server side, the functions in the asp file are identical, so that not
the place to look for the bug either.

any ideas?!?!?!?!?

thanks,
eRez