John,

On the workstation where the problem is occuring, move the workstation.nv2 file that you are using (usually in the NV2 folder but check the properties of the NV2 icon to be sure) and then click on your NV2 Icon which will create a new workstation for you. Enter the server IP and press F3 under file after inserting a new row in your new workstation table. Enter the application database.

Regards,

Martin