First, Please excuse my English, but i´m Spanish.
I think that IE8 and IE7, etc.. has an error, and even more if we programmed
in Asp.net.
When we create a page in asp.net, we have to declare the entire document as
a form with the tag <form></form>, but if we put inside another tag
<form></form>, in the IE8 closes the first of the tag <form>, and the
document is unavalible or corrupt.
Example: This no work fine in IE8 but yes in Firefox.
<html>
<head>
<head>
<body>
<form>
<form>
</form>
</form>
</body>
</html>
Can check the problem here.
http://www.elinformatico.org/
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Web Desing - Diseños web
Asp.Net - Php - Mysql - Sql Server - JavaScript - Ajax.