I run my SD planning on a WIN7 netbook and sync to a chinese satnav unit. Having updated (sync) the satnav unit from the netbook, I can see all the user waypoints I've created but not the airfields that I've created using the custom data function. However, if I select a route to an airfield I've created then the route will load and I can fly it, but the actual airfield symbol and name are not there. So, my route ends in the right (blank) place.

Am I correct to assume that custom data airfields should show on the stanav unit once it has been sync'd from the netbook? If so, what might be causing this problem?

SD and a cheap Chinese satnav = Jobzagoodun.