Avoiding penalty for duplicate page content

I'm trying out a tool called SEO Profiler, and that tool has compiled a report on my website, www.mauitradewinds.com   To my surprise, it reports an "error" in the form of "duplicate page content", which could result in a ranking penalty by Google.  A screenshot is attached.  I don't know how to resolve this.  There is no duplicate page on my server -- only index.htm -- which is the main page.  Any suggestions?
Screen shot of supposed error
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Scott Fell, EE MVEDeveloper & EE ModeratorCommented:
www.mauitradewinds.com and www.mauitradewinds.com/index.html are two different pages.  You probably have a link in your site to  www.mauitradewinds.com/index.html.

It might be a good idea for you to post a link to your site in the bug finder (see top right navigation) and ask for general seo and user experience tips.

With a small site, I think content and  usability can sometimes out trump minor technical items like duplicate content.

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As well as what padas has said mysite.com and www.mysite.com are considered separate domains and as such would be seen as duplicated content. So make sure mysite.com has a 301 redirect to the www version of the site or vice versa
ddantesAuthor Commented:
Thank you both.
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