Smoke and damage in FSX

Dear Community

I have 2 issues with an new FSX install(SP2 ACC)

1.) I cannot turn off the smoke.There is always on all planes a smoke form the center of the plane (not engine) the I key for smoke does nothng

2.) I can turn off damage to aircraft-it works for some time ,but from time to time it resets itself and damage is diabled

How should the disabled damage look in FSX.cfg?

Mine is like that.

[REALISM]
PFactor=1.000000
Torque=1.000000
GyroEffect=1.000000
CrashTolerance=1.000000
General=1.000000
UnlimitedFuel=False
TrueAirspeed=True
AutoCoord=False
RealMixture=True
StressDamage=False
GEffect=True
ManualLights=True
GyroDrift=False
CrashWithDyn=True
CrashDetection=True
AutoTrim=False
AllowEngineDamage=False


thanks for help

Roland