If you cannot enter your application database from your current workstation then I suggest that you restore a workstation backup and then enter the application database. If you do not have a workstation backup, rename your current workstation.nv2 file and then double click on your workstation icon on your desktop which will prompt you to create workstation.nv2. Click OK and then insert a new row on your new workstation and press F3 under the file column and select your application database.
To solve your out of balance problem, I suggest you select the following:
In version 2.15 select NVCheck > Repair > Account Histories
In version 2.16 select Database Utilities > Reorganize > Account History
Remember you need to select the correct application database to perform the above tasks on.
Regards to All,