Cally writes "Yahoo! reports that Microsoft have pulled a Windows XP update from the Windows Update servers after it killed network access for some users of the claimed 600,000 who installed it. (Does this mean only 600,000 XP users trust Windows Update?) The story hints that the problem was something to do with VPN or IPSec drivers clashing with Symantec software - however I haven't found anything about this on the Microsoft KnowledgeBase (the link Yahoo provide goes to the generic support home page.) Anyone got more info?"