Don't know if I have to open an new topic of it because there already exist one, but old http://forums.simflight.com/viewtopic.php?f=54&t=71095
If not, let me know and I will post furtheron in the old topic.
Now the problem: have exactly the same problem as described in the old thread http://forums.simflight.com/viewtopic.php?f=54&t=71095, it occurred when I installed an add-on which also installed the unregistered version 4.28 (I believe) of FSUIPC.
Before that I was flying with version 4.20.
Yes, I have the CH yoke and pedals but I guess that these are not the cause of the problems.
In daytime NO problems, when flying in the dark an complete system crash after 10-15 minutes will follow!
Has made an complete new fresh setup, system, FSX and addons but it still happens.
Installed version 4.53, still crashes.
Installed version 4.533 still crashes.
Had luckely version 4.20, installed it, problems gone!!
System:
QX9770
XFX 790I
2 x 8800 GT in sli
2x2GB DDR3 1800mhz
CH yoke
CH pedal
24"TFT (yammie, yammie)