MarkUp Validation Service Problem

RE: MarkUp Validation Service

In the following "form" data I can't get vlidation for the term: border="0".

<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr"
method="post">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="business" value="Sales@timeofday.us">
<input type="image" src="https://www.paypal.com/images/view_cart.gif"
border="0" name="submit" alt="Make payments with PayPal - it's fast, free
and secure!">
<input type="hidden" name="display" value="1">
</form>

The validator says:

Line 41, column 77: there is no attribute "BORDER" (explain...).

I am sure there is a border attribute in the image tag, isn't there?

H. Ray Battels