This past Friday, one of my clients called and none of the users could not connect to either of his 3 servers. (2 are server 2003 and 1 is server 2008). All servers were up, but none had network connectivity. Upon rebooting them, all reconnected and seemed fine. The 2003 servers installed some updates during boot up. Today, all of the workstations except 4 are unable to open IE. I can ping yahoo and browse using Safari or Chrome, but IE crashes when you try to open it. I believe this to be GPO related as the 4 computers that are fine are actually in an OU where no GPO is applied. This is the result of GPO causing problems with Win7 64 bit in the past and disablig all network services. I moved them into another OU because I could not find the proper settings in the GPO in order to undo it. Anyway, now all the other workstations are somehow being affected in such a way that IE is having fits. The workstations are XP and Win7 both and running IE8. Anyone out there REALLY good with GPO?