I've read a few threads that have touched on the same problem. Observed: While running previous beta (was it called 1a) I could not complete a scan either in manual or automatic without windows becoming unresponsive to comands which always lead to a forced shut down ie. turn off at wall. I installed the bew Beta B by uninstalling Beta A - Restarted - Then installed Beta B. After installing 1B windows would become unstable about 10 minutes after boot up. Again only solution was force shut down. I did this 6 times in a row before I han my lightbulb moment "hey didnt I just install the new beta why dont I unistall ESS?". When I did uninstall ESS the problems went away. So I uninstalled the new beta deleted all the left over folders restarted then installed Beta B again. This time it doesnt cause Vista to become unresponsive 10 minutes from boot only when I run a scan. Anyway the big problem is that I cannot claim that my system is free from intrusion as I cant run a scan and have it complete. Can anyone shed some light on this? Any fix that I can apply?