NIS 2009 fails to start

I have had a problem with NIS 2009 on my HP laptop.  This has happened on 3 occasions.  Each time NIS fails to start, eventually popping up a menu which directs me to the norton removal tool.

 

Each time the program has reinstalled fine, and continues to work for some time until the problem recurs.  I have not got the same problem with the same program running on my Desktop pc.

 

I should be grateful for any advice on what may be causing this.  The laptop is an HP G70 notebook PC, running Vista home premium with SP1.

 

Whilst i am able to resolve the issue each time by removing and reinstalling, i would like to get to the bottom of the problem.

 

Thanks