i have an xp machine with outlook 2000 sr1 and i am unable to view the global address list, i am also unable to send mail. the error message is that outlook is unable to communicate with the exchange server. other xp machines can communicate with the server. this machine can ping the server ip and hostname.network configurations are ok and i have re installed the outlook 2000 but there is no change. it seems that the outlook is the problem. all the settings have been done right but the problem is persistant.