I had a few problems a while back with my old graphics card whereby when I added RAM (i.e. increasing it from 256MB to 512MB), FS2002 would freeze up at the 'Create a flight' menu. However, after disabling the graphics card I had at the time, FS2002 would run fine even with the newly installed RAM.
So, I figured that there was some kind of conflict with adding more RAM & the particular graphics card I had, with the graphics card being the prime suspect for causing the problem.
Anyway, Ive recently bought myself a better graphics card (NVidia GeForce 5200FX) in the hope that this would solve the problem. After installing this AND having the added RAM installed at the same time, FS2004 has been working like a dream, and it seemed at first that I had been right about the old graphics card, but even so, FS2004 will STILL freeze up from time to time, the advantage is that at least Im able to run it for a few hours at a time before it does! Now I cant understand why it now lets me run it for such long periods with everything running fine, improved framerates, limited stuttering, etc. etc. then all of a sudden everything just completely locks up...I cant even shut the system down by pressing ctrl alt del!
Can anyone offer any ideas as to what I can do?