i configured my macbook to work with OpenDNS and it does boost the DNS resolution, however there's another problem now.
Entourage 2008 won't connect to SBS Exchange mailboxes anymore. SBS active directory resources would show up much quicker than before meaning i can connect to the windows network, but not Entourage.
note. i did not remove Windows DNS server address from the list. i just added two from OpenDNS. i couldn't remove Windows DNS from the list - it was greyed out. i presume if i deleted it anyway i would not have any connection to SBS shared resources at all.
any ideas? many thanks