I'm not sure when this occurred but I've just noticed it when trying to go through the motions of adding a new Client Computer to our SBS 2003 network. I've found that, although they are working as normal, none of the current computers or users on the domain are listed in the relevant Server Management screens. If I add new computers or users they also do not show up on the list.
Although I'm keen to resolve this problem by getting the computers and users listed on these screens my priority is to find a way to add / remove / edit users and computers so I would be grateful for any advice on alternative methods for doing this.
The most recent change in configuration to the server was an upgrade to ISA 2004. Any ideas to address this problem would be hugely appreciated.