NMS 3.0 Will not open!!

I click on the app icon or go to the app in Google Play store and click  'open', but it just goes to the "Welcome to Norton Mobile Security 3.0" screen and sits there. Forever.:smileysurprised: I've un-installed it a couple times, but still nothing. Anyone else have this problem-and fixed it? Thank you much. :smileyhappy:

 

HTC EVO 4G