Safe search tabs

I am running Norton 360 on a WIN 7 64 bit PC. Recently I had to reinstall the Norton 360 when it refused to run. After this I elected to switch on Norton safe search in the options as I had done previously. Now however, instead of appearing in the tool bar, it has started generating TWO tabs in internet explorer which appear every time the browser is opened. Eventually if they are not closed one ends up with a string of open safe search tabs. Obviously there is something wrong here as I see no reason for there to be 2 tabs anyway. I have tried everything to get rid of this and to no avail. Its extremely irritating and I want it gone or ultimately Norton 360 will go. Any ideas what I can do to get rid of these stupid tabs?