Duplicate content on pages, PenguinMail template

Greetings,
I'm having duplicate content show up on multiple pages of my client's website, which is built using the Penguin Mail template. Clearing the cache in the Joomla backend seems to temporarily fix the issue, but reloading the same page brings back the duplicate content. I thought this problem was a Joomla 1.7 problem fixed with the 1.7.2 update, but the problem is still there after updating.

The website is http://www.wayofchampions.com

Please advise.

What you need to do is do few tests.

Create an article with only a test word in there and see if that gets dublicated.

As far as i can see there could be few mistakes or problems so i list them below.

1. You are using same text in introtext as well as fulltext so it looks dublicated.
2. You are using a plugin or a module which shows as if content is dublicated.
3. Rename following folder "joomlaroottemplatestemplatenamehtmlcom_content which is a customized look of com_content which will allow system to use joomla default style to see if its penguinMail style problem.
4. Backup your website and then purge SEF URL to see if problem is related to SEF or SEF Component.
5. Disable any cache plugin/module/component/settings and disable SEF and use standard joomla url to see if problem is still exists.

I changed the name of the folder in template/html/com_content, but it's still delivering the site in the correct template format.

It looks like the problem fixed itself on all but one page.

So this proves that it's a glitch in the template? I've installed the latest version, and have only made minor adjustments to the css file.

Generally these kind of errors are caused by using cache or any SEF Component so i wouldnt count it as glitch but if problem is gone away then it is all good...