Well because some one hacked the SFS code they are now delaying the patch 4.09 for IL2 FB 1946.
I wonder if the tool The doc made had any thing to do with that?
Realtek AC 97
Thats your problem try getting real sound card Like creative labs X-f1 extreme.
try this update your codecs for that on board sound.I'm asuming you have win XP since you didn't state what OS you have.
I think the engine that runs a check and monitors the AI and Palyers units and equipment and stats needsd to be faster. I watch the system checking everything and it seems a bit slow.
your card is capable of running the game just turn your water settings to low you should be ok. Since I have done this I havent had a runtime error 3 trap at all.