[{HVY-E}Jinxx]

First and foremost, check your config.ini file to make sure that it is complete.
9 out of 10 times this is the reason the game fails to launch at all. If it's complete, make sure that the resolution in the conf.ini is one that your video card/monitor support.

If you suspect that the conf.ini is corrupt, just erase it's contents and run the il2setup.exe and it will re-compile the file.