First thing would be to make sure you cleared your Cache.
Second thing, go to the Style Template settings, then click the Template Associations link at the top of the page. Make sure all pages are set to the same Style Template - if your front page is set to one, and all other pages are set to another, that may be part of the problem.
If those don't help, you'll have to post an address so we can see the problem better.
---Skorpion