I’m having a small problem like this also. I’ve tried running the upgrade from winthin Win2k3 STD and the setup program tells me that the version of windows I’m running cannot be upgraded because it is newer than the version on the CD-ROM!! When I boot from the ENT CD I don’t have any option to upgrade my existing server. I’ve been unable to find any pointers on this so far after hours of searching. I’ve tried rolling back service packs and upgrades in the hope that eventually I’ll bring my W2K3STD back to a stage that is older than the version on my disk. Should my distributor be able to give me a newer disk?