Help with Security Suite needed for old lady not computer savy!

Good Morning!  

  I am definiety computer illeterate and need some help, it took me 10 minutes just to figure out how to post a message:womansad:  I am a comcast customer so all my anti-virus is now Norton Security Suite.  I thought I had everything set up correctly, but when looking at everything, I see that the Performance Monitoring is turned OFF, I tried to turn it on but it won't stay on.  I then tried to launch the web solutions and it won't connect me.  Can anyone help me IN OLD LADY ENGLISH!  I would truly appreciate it!