Sometimes when I first open Internet Explorer is hangs with just a blank window. Further efforts only leave me with "this program is not responding" "close program now". Which I do and then it reopens just fine.

I suspect that is relate to an Internet Explorer pop-up that I'm also getting sometimes, whic also leaves no option but to shut it down.

The pop-up reads:

Internet Explorer has encountered a problem with an
add-on and needs to close
_______________________________________________
The following add-on was running when this problem occurred:

Add-on Name: SDHelper.dll
Company Name: Safer Networking Ltd
Description:



FWIW I'm also running Norton 360 and the Google Toolbar.

Any ideas how to go about stopping this from happening?

Thanks,

Rich