Hi Tech. I had the same problem, but the fix was fairly easy for the most part.
I am running Win XP Pro an this is whay I did to correct the problem.
Go to control panel and open Administrative tools.
Click on services.
Go down to Windows Managament Instrumentation.
Stop this service. along with Security Center.
Exit out of this area to your desktop.
Right click Start and choose Explore.
Go down to c:\windows\system32\wbem\repository.
Delete this subdirectory ONLY.
Exit back to your desktop and reboot your computer.
Leebme, I have a two user account, and having a simular problem. With both accounts logged on, if I log completely off my wife’s Full Admin account, and then click to get back on my Full Admin account, often there will be the security center icon in system tray along with the CPF icon. Usually this just flashes very quickly and goes away, but today it stayed for a few seconds. Thanks ahead of time for any help.