Vehicle modification

Hi,

please notice that we are upgrading DBM from version 6 to 7 and I am facing 2 problems in vehicle:

-Once I create the vehicle and select the model needed then save the action the system will not allow me to see the screens of vehicle informations(General,History,option...)

knowing that a record for this new vehicle in VLCVEHICLE having the correct Model and correct informations

Old vehicle created in DBM 6.0 are working fine and shows all the details of the vehicle navigation

-Once I modify any vehicle details for old vehicles created in DBM 6.0 and save then the system will get back all the old informations

it seems it is like the tables are read only

thank you in advance