Hi theskysoblah,
I wish I had read your message earlier....
I just purchased the Responsive Pet Store Template #576 and am having the same problems.
I have repeated removed everything, the whole domain and restarted and keep getting the same format errors.
If I revert back to the html5, the format returns to how it should be.
Please can someone from support offer some solution to why their paid for templates are not functioning as advertised?