One thing Secure-surf has also been known to do that many other adware programs don't is to alter the system 'hosts' file to redirect certain search-related URLs to its own IP(s), typically by appending new lines near the end of the hosts file. If these are present, unless they are removed, they will force any attempt to contact the associated URL's to instead route to the Secure-surf IP. If you are familiar with your hosts file, you may want to check it for alterations.