Hello guys and as always thanks for your time and expertise. I want to upgrade our FSMO role holder from 2003 standard to 2008 server enterprise edition. We are a single domain enviornment and all of the Domain Controllers are GCs. I will do this off hrs so as not to cause any problems. Additionally the server hardware is a poweredge 2950 which seems in line with the upgrae on the windows server catalog page. If I do this off hrs, should I be fine or would you recommend transferring the roles. Please let me know your opinions and recommendations for this. The expert advice is always greatly appreciated.