Hi,
@Arnab: Hard to tell what you're doing wrong. Probably an engine or system not started correctly...
@Rob: I'm aware of this issue, I'll have a look.
@Umberto: You must NOT change the default folder where aerosoft's navdatapro isntalls the navdata for my software. It has to be c:\users\your_user\appdata\roaming\jeehellware (where "your_user" is of course your username under windows...).
JL