Running Win 10. Everything is firing on all cylinders EXCEPT that my aircraft icon isn't appearing on the Plan G map, the latter being displayed on my secondary monitor.

What is amiss?

Thanks.

I've selected the Simconnect radio button therein.

FSX-SE only installs siconnect 61259 along with the new one. Maybe your map needs simconnect 61242, or 60905. Try installing those two versions from the SDK folders:

 

C:\Program Files (x86)\Steam\SteamApps\common\FSX\SDK\Core Utilities Kit\SimConnect SDK\LegacyInterfaces\FSX-SP1\SimConnect.msi

 

C:\Program Files (x86)\Steam\SteamApps\common\FSX\SDK\Core Utilities Kit\SimConnect SDK\LegacyInterfaces\FSX-RTM\SimConnect.msi

Thanks for that, SteveW. I'm not at al, familiar with those SDK folders. Any precautions I need to take with them?

Just double-click each .msi and it'll install these two other FSX simconnect libraries. May not help with your map, but a lot of FSX addons use them.