A client of mine is using Exchange 2000 standard which has the 16GB datastore max. They're closely approaching that max, so they have purchased Exchange 2000 Enterprise. Initially I wanted them to go with Exchange 2003, but what happened was they purchased 2003, but not the client seats. That's a whole other store though... Anyway, are there any sites out there that will define any possible bugs, errors, etc to watch for when upgrading from 2000 Standard to 2000 Enterprise? Any help would be greatly appreciated! Thanks OT!