Please help me with this error!!!

[Stealysteve]

Wow! So i turned down the graphics from Very High to Medium in order to see if that would help. And it seemed like the game was just about to work but right at 95% the game froze and an error popped up saying,"Runtime Error! Program:...mapps\common\il-2 sturmovik cliffs of dover\launcher.exe
This application has requested the Runtime to terminate in an unusual way. Please contact development team for information." Whats this all about now???? If its not one error message its another!