I have very big problem with FS2. All worked properly and suddenly in Monday Fs2 begans to quit to desktop without any bug during almost all games! I've tried to reinstall fs2, i've tried to kill everything thats going in background, i've tried to change pilots, i've tried to reinstall video card and i've reinstalled windows. But nothing of that helps

Somebody know how to solve that problem?
This problems are in multi and single

I have:
300mhz/64ram/tnt2/ win98SE
ErrorLog reports something like that:
FS2 caused an Access Violation in module Unknown at 017f:fb673379.
Exception handler called in Freespace 2 Main Thread.
Error occurred at 4/24/2004 22:05:08.
G:\FREESPACE COLLOSSUS\FS2.EXE, run by TuszyƱski.
1 processor(s), type 586.
63 MBytes physical memory.
Read from location fb673379 caused an access violation.