I have a customer that has SBS 2003 with only 3 users. They use Medisoft and Quickbooks 06 Pro from which they maintain the common databases on the server in a shared folder. Every couple of weeks they lose connectivity between their client apps and the shared databases on the server and one or more of the users' permissions get changed. One user has only power user rights on the server and on their local machine and Quickbooks Pro is denying her access. Is this an SBS permissions problem?