You're saying your Start Menu/Program List is stuck & highlighted on Norton, right. Lemme guess... this is (right) after installing Norton or looking @ it or doing something/anything w/ it, to it OR it doing someting all by itself (Norton is good @ that) AND you're also saying hitting the Back button (in your screenshot) does nothing either? If you reboot does it come back like this?
If you get rid of Norton does it happen anymore?
Pls excuse more questions than answers; 1 begets the other, lol.
Drew
"A scan a day keeps the nasties away"