Privacy Service

I bought a new pc recently along with McAfee Internet Security 6. Since installing it, I've had problems and tried to remove it, which I also had trouble doing. After several chats with McAfee I managed to get instructions from them how to remove/reinstall it. Since I reinstalled it, the Privacy Service which should clear my browser history when I close it, isn't working. This is no big deal I know, but if that's not working properly, what else isn't. I've contacted McAfee again and again, and all they try to do is tell me how to uninstall it, they don't seem to grasp this is a new problem. Is there anyone out there with the same problem or can give me some advice. Thanks.

Rob