Multiple instances of Norton Management launching while using Blizzard Entertainement title.

The above picture is after about one hour of playing Diablo III. Eleven instances for Norton management running at once. I having similar problems with most any modern Blizzard Entertainment game, and a few other games that use online connectivity. It only seems to happen with game apps. I wouldn't mind it so much, if not for the fact that it is eating up system resources. How do I get this under control?