Trying to disable Norton Internet Security so I can install Starcraft 2

Hi there.

I am trying to install StarCraft 2 Heart of the Swarm (Christmas gift from my wife) and have been running into a ton of issues. After running through all of the possibilities the StarCraft support people are saying that it is likely I need to disable Norton in order to install and patch the game. Unfortunately I have been unable to find a way to temporarily disable Norton to do this. Can anyone help me do this or figure out a way to get around Norton so I can install my game.

Thank you for any assistance you can give.