In Navision Solutions 3.0, When user tries to choose any Option(Orders, Invoices etc.) the following error comes up, "internal error in module 10, contact your dealer if you need assistance
Erase the file fin.dmp, which is located in the order, where you have installed attain.
in our case the all and mighty deleting of the zup-file was the solution
Deleting the zup file did work. Thanks. We did also reinstall the client on the pc we were working on, but don’t know if it was absolutely necessary.