I am tring to upgrade to exchange 2000 so that I can upgrade to exchange 2007. However when I try to upgrade to exchange 2000 I get this error message The component "Microsoft Exchange Messaging and Collaboration Service" cannot be assigned the action "Upgrade" because - Setup has detected the the Organization name of the Exchange Site you are currently trying to join or upgrade does not match the Exchange Organization found in the Active Directory. To fix this, you may use the Exchange 5.5 Administration tool to change the display name of the Organization and then re-run setup. How do I correct this issue...TIA