IE change() event firing even with no changes

I have a problem where the html for a form is sent in from the server with some of the input fields initialized to values other than "". When the user tabs thru these fields, but does not make any changes, the change() event is fired in IE6, the first time. Subsequent times and on fields where the value is "" to begin with there is no problem. This problem does not happen on other browsers.

Any thoughts or work-arounds?