Norton Safety Minder turned off

Hi

 

I used to get a message that Norton Safety Minder had been turned off when I turned on my computer.  It had not been turned off and so it was annoying to get this each time I turned on my computer.  I uninstalled Norton Internet Security 2010 and installed Microsoft Security Essentials and Prevx instead.  I now no longer get the messages on my machine and Norton Safety Minder seems to be working well.  Could it be something within NIS 2010 that messes with Safety Minder?