NIS won't open

I just discovered a little while ago that my Norton Protection Center won't open.  If I try to open it from the taskbar, all I get is a white box and when I close it down on the taskbar I can see:

 

Error:  Unable to op.....

 

My PC is a Dell XPS 410 and I purchased it in Feb. of '07 and NIS came with it (good for 15 months) and I renewed it in May of this year.  My operating system is Vista Home Premium.

 

I went to the services.msc and here is what is there for Symantec (nothing under Nortion):

 

                                                                                        Status                                     Startup Type

 

Symantec AppCore LC                                                   Started                                    Automatic

Symantec Core LC                                                                                                         Manual

Symantec Event Mgr.                                                      Started                                    Automatic

Symantec IS Password Validation                                                                                  Manual

Symantec Lic NetConnection Service                             Started                                    Automatic

Symantec Settings Manager                                            Started                                    Automatic

 

Could my problem be the two that are "manual"?

 

Thanks for any help that you can give concerning this matter.

 

Pamela