Article:
http://www.engadget.com/2010/04/21/mcafee-update--shutting-down-xp-machines/"Apparently DAT update 5958 deletes the svchost.exe file, which then triggers a false-positive in McAfee itself and sets off a chain of uncontrolled restarts and loss of networking functionality."
Thought I'd post this incase anyone runs XP and uses McAfee...and then larf at the situation of a false positive that crashes your computer worse than a virus. :B