Norton Internet Security hanging.

Hi,

This morning I tried to open Norton Internet Security and was presented with a box that says 'Loading...' I have never encountered this before. I am attaching a screen shot. This just hangs and nothing loads. I have tried restarting several times but it is always the same. As of yesterday NIS was up to date. I have 30 days left on my current subscription. I wonder if it's connected.

Help appreciated.