Password input shows texts in IE only

Hey does anyone know why the IE doesn't hide text typed into a password enable input field. Works fine in Firefox, Opera, Netscape with ***** shown just not in IE. I use the line below.

obj.getContent("box/text").setAttribute("type", "password");

Use AW.UI.Password class (2.0.2) -

var obj = new AW.UI.Password;

No, the problem is that if setControlText / setControlValue is used when initialing the password field il will not show the **** in IE. It is probably a wrong approach to set the text of the password field in "blank" in the js but the problem exists.