FSX installs but not working

Hi, after following a friend's FSX installation which was easy and tasted its smooth flying, I was tempted & spent
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=21&t=64122
I checked the fsx.cfg & this is all it has for Terrain, is it right?
[TERRAIN]
LOD_RADIUS=4.500000
MESH_COMPLEXITY=75
MESH_RESOLUTION=20
TEXTURE_RESOLUTION=25
AUTOGEN_DENSITY=3
DETAIL_TEXTURE=0
WATER_EFFECTS=7
[AContain]
Do you happen to fly this Beech Baron G1000. I found it rather unstable, and how do you S/W ON the AP. The ILS freqs do not seem to mutch the airports.