ESET SS 4 has failed to load the firewall off and on for about 4 months. I blew a gasket a while back on another post because it appeared to me that the solution being recommended was to ask users why we were using the firewall, or why don't we just disable it and use the AV portion of the suite. Post blown gasket--I got good response from tech support and in return I jumped through all the standard support hoops. I sent several sysinspector logs, used a special Norton uninstall cleanup utility, uninstalled ESET SS, used a special ESET uninstall cleaner utility, reinstalled ESET SS and ended up with a installation that seemed to be more stable. That was until last week. This time the red icon would not go away no matter cold boot or warm boot. There was a time where a warm boot was more successful than the cold. But that was no longer the case. I decided to follow all the former suggestions to see if I could solve the problem again without contacting technical support. No joy--even with the latest version of ESET SS .467 I then went into Vista's Event Viewer and I found an error message that said ESET Service was set to be interact enabled and Vista does not allow any program to be in this mode. I had no real clue what this meant but followed the MS Knowledgebase solution which was offered via a link in Event Viewer. It had me go into services find ESET Service, click properties, click the logon tab and uncheck the interact checkbox. I did it and tried to apply the change and was quickly told access denied. I then started the computer in safe mode. Followed the above steps and this time when I clicked apply it took! I have rebooted many times over the past two hours and ESET has loaded flawlessly. I have no idea why this is the case, nor how that check box was checked in the first place on an OS that apparently does not permit such a feature to be enabled. I don't know if this will help anyone else out there, nor do I know if this is only a temporary fix, and that the ESET firewall will eventually fail again. I will also say if not for my two year multiple license subscription I would have moved on already. In fact, I had decided this morning that if I could not solve the problem by day's end I was buying a different product for my one computer.