I am configuring a new Windows 2003 R2 server in an existing AD which has two DCs (one has Windows 2000 SP4
running Exchange 2003, and the other has Windows 2003 and was used as a staging server for a migration from
Exchange 5.5 to 2003, so it had the necessary AD preps run at that time). When I run the wizard to install AD on the
new 2003 server it stops part way through with an error stating that the "forest is not prepared for installing Windows
2003. Use ADprep to prepare both forest and domain. The version of the AD schema of the source is not compatible
with the version of AD on this computer." Now the last thing I want to do is mess up AD on my two existing servers
in order to accomodate this new one. I am eventually (within the next month) going to install Exchange 2003 on this
new server and move it off of the 2000 server. What would be the best way to proceed?