Moving the site problem! please help

Im trying to move my WP site from one domain to another.

I copied out the database SQL and installed it on the new site and then copied and uploaded all the WP files to the hosting.

The problem is that it is still linking back on certain pages to the old site – yet i have looked through all the database enteries and the files and cannot find any record of my other site for it to be linking back to it !?

Any ideas? Thank You.