[jQuery] Newbie question (Bassistance Validate) - error msg does not go away

[jQuery] Newbie question (Bassistance Validate) - error msg does not go away


i am new to jquery and started using the validate plugin with jquery.
I tried the demo but have problems using my own jsp form.
i have added the usual
$(document).ready(function() {
    $('#customForm').validate({
    rules: {
    field1: "required",
    ...}
    messages: { ...}
     });
the error messages showing up fine, but once i start typing into the
field, the error msg does not go away. where should i start to look?
can someone provide any pointers?
thanks