Error during Installation

Hello, we are trying to install Navision 3.70 ourselves in our store in Tansania. Everything is fine, but then there is an error, which I cannot fix: When I want to work with a client not from the server pc, I get the message: “You cannot use the file (than the name of our database) because file is already in use” if I have already open navision on another pc. What is wrong with that? How can we work together in our database? Can somebody help me?

In order for you to access the database from multiple machines at the same time, you would need to have a MBS Navision server running for that database. Try setting up a MBS Navision server for the database. Hope this helps. Jonathan