Blue screen crash on exit from CFS3

Problem occurs when quitting after gameplay. No detectable link to type of mission/campaign, etc. Possible link to duration of play, but not sure. All worked OK on old motherboard (Pentium 3 based) but not new one - Matsonic MS8147C with VIA chipset, AMD Athlon XP2500+, 512Mb RAM.
Have loaded latest motherboard drivers, ltried atest graphics drivers (nVidia GForce FX5600XT) - they flashed violently, so went back to previous set! Also loaded DirectX9.0c, set swap file to 1024 min, defragged, version 3.1 / No-CD, tried different screen resolutions.
Totally locks up on 'blue screen' - requires hard reboot to clear, then have to uninstall/clean directories/reinstall totally before can play again.
Just about had enough with this d**n game"!!
Skysail.
Have loaded latest motherboard drivers, ltried atest graphics drivers (nVidia GForce FX5600XT) - they flashed violently, so went back to previous set! Also loaded DirectX9.0c, set swap file to 1024 min, defragged, version 3.1 / No-CD, tried different screen resolutions.
Totally locks up on 'blue screen' - requires hard reboot to clear, then have to uninstall/clean directories/reinstall totally before can play again.
Just about had enough with this d**n game"!!
Skysail.