A blue screen is caused by bad data. It can be many things. Try removing the cache, squads, and skins folder in the Aces High II installation directory and then rename the 'settings' folder.
After that and assuming you made the changes I told you to make in the other thread, if it happens again, it is more than likely something corrupt on your computer.
By the way, this is very difficult to handle when you keep starting new threads. That is why you ar not getting responses. Going to other forums is not the way to deal with this.
Best send me the output of the DXDIAG and let me go through it. I cannot do that in the forums. I have tools to help me with reviewing the data.
This does not mean there is an answer. No one here knows enough about your computer to be able to cover all the bases. Problems like this can be related to interaction with other programs running on the computer.