Thanks for that. Do you know what the new directory consists of? I take it that it is an update of info on aircraft such as aircraft reg's?
The whole install directory is different. V1.4 installs into:
C:/Program Files/AirNav Systems/AirNav RadarBox 2007/
and V1.5 into:
C:/Program Files/AirNav Systems/AirNav RadarBox 2008/
V1.5 is a major program update, it's not just updates of regs. You don't need an update on regs anyway as these will happen via autopopulate as you run RadarBox (providing you have an internet connection).