My office has an older program that needs write permission to the server. The server is server 2003. I've noticed that on the windows 2000 clients everything seems normal no error when the program tires to write to the database stored on the server, however on the Windows XP machines it has an error. The users are members of the built in user group. When i add the user and the comptuer to the administrator group it gains the required permissions to write to the server. I've checked and made sure that the user group in the group policy securtiy tab has read/write permissions but it's still not allowing users to write. Any suggestions as to what the admin group has that would allow the permission that the user group doesn't?