ODBC and Citrix / Terminal Server

I know this question has been asked before, but it was never really answered. [:0] But my client is running Citrix Metaframe with Navision 3.60 W1. We’ve installed the drivers and they are located in Program Files/Common/Navision on a shared drive. Checking the registry it points to the correct location. But still it will not work. It says that it cannot find the HOST. The server and database name was copied from the Database Information window in Navision. Does anyone have a clue? I remember when installing Navision under Citrix it was also PAIN!