I was having a problem with 10.1.079.000 performing unscheduled scans and using a too much processing capacity. Technical help advised an update to 10.2.078.000, which I downloaded and installed. Unfortunately when I rebooted ZA never got further than "initialization" and slowed the computer down so much that I could not do anything, not even open task manager. I also got several dialogue windows about TrueVector needing to close. Also I could not connect to the internet. I tried reinstalling, but to no avail. I even restored PC to an earlier date and reinstalled, but that did not make any difference.
In the end I had to restore the PC back to an earlier date and reinstall version 10.1.079.000 and then everything was hunky dory ( although I did get a warning about installing an older version over the newer). Anyone had a similar problem? Windows XP SP3.