Test Google Analytics Code Placement
Not sure if you placed the Google Analytics code into your site properly?
SiteScan provides you an audit of how well you have applied Google Analytics to your site. I have only run the tool on a few sites, but it seems to provide good results and has pointed out a few pages where we missed adding the code.
This tool is referenced in the Google Analytics help documents, but not ‘officially’ recommended. Definitely worth a try to help ensure you’re getting the most out of Google Analytics.