I just ran Windows Update and the Daylight Saving Time (KB970653) Update was available. After reboot, the system wouldn’t load completely and what was available was desperately slow. The Comodo shield now showed the red circle through it. Trying to open any program was a failure (including the Comodo GUI). I did a System Restore to just before the WU. Everything returned to normal. I ran the WU again and got the same results, CIS shield red circle and system freeze. Restored system again and all’s well, again.
Update for Windows XP (KB970653)
Download size: 0 KB , 0 minutes (Downloaded; ready to install)
Install this update to resolve issues caused by revised daylight saving time and time zone laws in several countries. This update enables your computer to automatically adjust the computer clock on the correct date in 2009. After you install this item, you may have to restart your computer.
WinXP Pro SP3
CFP, CAV and Defense+ enabled