Sorry for the lack of info,
Yes I have and use cleaner, its excellent and I have speccy
I have windows 7 home premium, and I downloaded Internet Explorer 9 beta 4 days ago and then it started to happen (not sure if ie9 was the problem). So I uninstalled IE9 beta back to Internet Explorer 8 thinking I would be able to delete my Address bar history and I still cant.
When I open my "show address bar autocomplete" toggle (left of the refresh)in my history all I see now is
XD Proxy http://static.ak.fbcdn.net/connect/xd_proxy.php'>http://static.ak.fbcdn.net/connect/xd_proxy.php'>http://static.ak.fbcdn.net/connect/xd_proxy.php'>http://static.ak.fbcdn.net/connect/xd_proxy.php
XD Proxy http://static.ak.fbcdn.net/connect/xd_proxy.php
XD Proxy http://static.ak.fbcdn.net/connect/xd_proxy.php
XD Proxy http://static.ak.fbcdn.net/connect/xd_proxy.php
etc etc...
I am not being redirected, its just un-deleteable, They basically do not go away when I delete them and its growing by the day. Its something to do with facebook.