Problem Viewing Site

Hi There,

I changed the url of my WordPress site, and all went succesful accept for one small part. When I log into the wp-admin (dashboard) in the upper left corner (right next to the WP logo) there’s a button that shows the site name, but when I click on that button it still links to my old site, I can’t find the specific file that is linked with that button, could anyone tell me which file that is?

Thanks anyway,