Don't expect to run FSX on any computer with "Max settings", or you will be very frustrated, only to blame it on FSX, when really, FSX's sliders have a COMPLETELY different meaning than FS9.
Autogen in FS9 set to max, is really Autogen set to "Normal" in FSX, just for example.
The real problem is, our computers keep getting faster and faster, and FSX keeps getting older and older.