page templates not working..

I working on custom page templates.. The page.php works perfect with my code.. But when i use the same exact code(exact copy) and rename the file and rename the name of the template and select for a certain page. it does not work in IE 7… Strange because if I use the page.php it works perfectly even in IE 7.. It’s the same code..

here is the link with the page.php template
https://cyberworxs.com/wordpress/portfolio/

here is the link with portfolio.php
https://cyberworxs.com/wordpress/about/

keep in mind the code is exactly the same..