cSvcHst.exe process is using up 100% of CPU / cSvcHst.exe duplicates itself

Installed NIS 2009 today and my ccSvcHst.exe process is using up 100% of CPU from time to time which obviously prevents from using the computer… When I launch some Norton Internet security features such as qucik scan, ccSvcHst.exe process is duplicated… I am running XP SP3. Does anyone know how to fix this issue?