Running XP pro SP3, ZoneAlarm Free 22.214.171.1241 (and later upgrades.)
When I upgraded to the next update everything was fine for day, then the control center would freeze when I opened it. None of the buttons were active. Sometimes even the window close button (X) would not work. I would re-install and everything was ok for a day or two and then the same thing would happen. I ran cpes_clean.exe and installed 126.96.36.1991. But then it started doing the same thing. When the current release became available, I installed it. Things were OK for about a week and then it started doing the same thing. I would reinstall it and nothing changed. Finally I went back to 188.8.131.521.