Dump Norton.
http://www.mcafee.com/us/
It already has one foot in the grave and the other is slipping. It isn't worth the hassle or the grey hair.
I came to the conclusion...after almost two years of trying to use Norton...that it was causing a huge number of errors on my CPU...and so I dumped it for McAfee. Never again....did I experience massive errors. I can't figure it out...and often wonder if some some special virus came into my system...that Norton simply couldn't handle.