Internal error 7 in module 46

I found this to be: 46-7 #Err_Date_EvalOrder (Module_Date,7) Any suggestions on how to fix this?

Additional information: The problem only occurs in a Terminal Server session. Accessing our Navision Financials 2.00 database from a workstation in our local network is working fine. When running Navision in a Terminal Server session al date fields stay blank. Entering a date leads to the Internal error 7 in module 46. We run Terminal Server on a Windows 2000 Server with all updates / fixes We suspect that the installation of Navision Attain 3.60 client caused our problem We uninstalled all Navision Clients (2.00, 2.60 and 3.60) and reinstalled the Navision Client 2.00 again but that didn’t solve the problem. Our NSC and Navision Netherlands don’t have a solution or any suggestions at the moment, so any suggestion is welcome.