FYI, had this happen to both of our Precision Workstations in our office; thought the obvious conflict was with some Office XP updates that had been made earlier in the day. Used the msconfig utility to disable PC-cillan on startup in order to remove the program all together on both machines Sunday evening (for some reason, was not able to uninstall in safe mode).

Saw this today: http://www.trendmicro.com/en/support/pattern594/overview.htm . Have no idea if anyone else was affected domestically, but talk about panic attacks!!

Will be doing the re-install today -- crossing fingers that this will not happen again.