LiveUpdate problem - IE won't open until reboot

I have Norton Internet Security installed on my Windows 7 PC.  Recently I have noticed a problem after Live Update runs automatically.  When I get on the computer and I try to open internet explorer it doesn't open but a it does create a process that I can see in Task Manager.  If I look at the Live Update it will say something like it ran 2 minutes ago but if I run it manually it does an update again.  I have to reboot in order to get IE to work.   Any ideas?

 

thanks

-kevin