Please be more specific? What server? What clients? What network setup? How are user profiles managed/ synced? How are permissions set up? Could be anything.
ok so it's a standard windows environment, w2k8 servers, xp workstations, users have local admin access. What's happening, is you work on a scene, save it, it's fine. save again, it spits out the error:
after effects error: renaming filename -- file is busy (delete)(-47)
and I'm told by the artists that the if you look in the folder where you've working, the file lets say called test.aep, when saved, on the second save it gets renamed to a temp filename, then fails, you save again it saves it correctly, save again, it errors and creates a new temp file.
That sounds more like an issue with the server's file caching. I recommend you log on to the server, start the group policies editor and look for an Allow users to write files immediately option or whatever it may be called. Should effectively prevent the server from cahing the file first. also note, that if your users do not have dedicated user names and they all are logged on as Admin or User 1, User 2 and so on, it may still cause issues. If they're not already doing so, I'd advise them to use a dedicated user name. Also makes it easier to keep track of who modifiied files...