I tried to upgrade from ZA free to ZA Pro and after the upgrade my system would not boot up windows. I unchecked run at start up,rebooted, uninstalled ZA free from the control panel, rebooted then ran the clean utility.Did everything that says on this link http://server.iad.liveperson.net/hc/...97&action=view then installed ZA Pro. After rebooting windows would load to ZA start up and would shut down. I had to go into safe mode to uninstall the pro version then reinstall the free version. Any one have ideas why I can't get the Pro version to work? I am running Win Vista Home Basic.And have the newest version of both free and Pro versions of ZA. Thanks.