Massive Lag (OS related)
 

Today I reinstalled Windows Vista with Windows 7, I of coarse first installed IL2 1946, upon installation and running i noticed something, there was A HUGE LAG, where the mouse was lagging behind by about 2 seconds, and similar in-game, Now dont tell me my computer is crap i know it is, but i was just playing IL2 1946 on the same computer a little over two hours ago-SMOOTHLY!!-, whats the problem and how do i fix it, i want to get back into my FW 190 fast!

You'll probably have to download and install the proper recent Video card drivers, and maybe chipset drivers as well...