1) but the geostatioary path still appears, even when the geostationary satellite is unchecked..
[b][color=blue]try to un check and check, it should work properly.[/color][/b]
2) The simulation still hangs after 2 or 3 minutes.
agree, Ejs4.3.7 produce this bug, i have revert to Ejs4.3.5 and it seems better now.[/b][/color]
3) No way to solve the "maximise screen" problem?
[color=blue][b]no perfect solution, try to maximise once, it still re-position the view in Ejs4.3.5[/b][/color]