I've posted this in the original thread, but thought it worth highlighting :
I installed this last night. I got no message to say uninstall any other Symantec products or anything. I then was asked to reboot, and the proverbial s**t hit the fan....
After the usual wavy windows flag I got a black screen instead of the log on screen. I managed to reboot in safe mode, but was unable to uninstall the program due to being in safe mode. I tried to reboot again and was told that something in c:\windows\system32\system\ is corrupt and Windows cannot continue, please try a repair using your Windows disk (and we all know how well that works !)
I dont know if uninstalling the other products would have helped, but I know what I'll spend tonight doing... :(