I have just purchased Zone alarm extreme 9.1.603 and can't install it. I had the trial of it installed no dramas but now cant complete the install of the latest update. It says in need SP1 for vista but I am using W7. I tried the compatability tab in ZA setup properties but can't uncheck the run as compatable to vista check box as it is greyed out.
I have a dell XPS 720 with no other security software