I got this in an email from a tech friend today, wehave not had this experience, but evidently lots of folks have, thought I'd share.
http://www.computerworld.com/s/article/9155419/Windows_patch_cripples_XP_with_blue_screen_users_claim?source=CTWNLE_nlt_dailyam_2010-02-11
actually, I thought I heard the same regarding a recent Windows 7 patch as well.
???, even more reason to have WSUS or another patch management system and a test environment, can you imagine the hell something like this would cause :'(