The flight plan I used was written using Dave Westbury's AI Flight Creator program. In that you enter the times in local time and it converts it properly. I know it looks strange but displays the correct time when watching the AI traffic using the free TrafficToolbox utility from Microsoft.Glad to hear you got it sorted out.

DavidThank you for everything. I've got it working and think that the problem was conflicting Traffic-bgl's. When I totally removed all the traffic-bgls and made up a new one, I've now got ai traffic. I do have one question regarding the take-off time in your example. It is written 02:38:58 and you said you set the departure time at 18:38 GMT. I thought the flightplan times were written in GMT and wouldn't the departure time in the flight plan be written 18 etc?

They are written in UTC. That flightplan has an 8 hour interval so the plane will fly 3 times a day, at 02:38:58, 10:38:58 and 18:38:58 UTC.regards,Joe