Fdd_fr, thanks for that. I will check when I am next on my PC. Also, I have noticed that when I add a SID, the initial flight plan waypoints from the runway to the last SID point are not removed, meaning the aircraft flies the SID, then turns back to the airport and commences the original flightplan route. The same happens with the Star. The aircraft flies direct to the airport, then turns away and starts the standard arrival. I did not see any mention of having to manually delete obsoleted way points when entering SID's and Stars in your excellent FMC Manual.
Sent from my tablet thingy!