Hi,mgemm, and welcome. Not sure if you have an Enterprise version of Norton, but this help file may be of some use.
http://www.symantec.com/business/support/index?page=content&id=TECH100470
You could also use Command Prompt as an administrator and type sfc /scannow in the Run box, and it will attempt to repair the file.
You can also turn off various notifications in the UI Settings menu.