Any problem with virus consult me

well i've got a problem for you, i have the lastest norton anti virus 2006 installed, but a virus named win32.jeefo completely disabled my security grid, disabled norton antivirus, and destroyed all the .exe files in the drive, it was a huge loss, i had to work for months to recover from it... i have'nt still been able to figure out how to get rid of it, if it strikes again...any ideas???