I have been trying to install the 9.0.114.000 ZA Extreme update. The first time I ran install I received an error message indicating I may not have an updated root certificate. ZA installed, but without anti-virus protection activated. I cannot activate it from ZA, and subsequent install trials end at 6% file extraction with the message that installation was canceled. I have rebooted several times (but I cannot boot without ZA--the option to load at startup will not 'uncheck'). I'm a little nervous about being without anti-virus protection--naturally. Help?