Heavy Metal FAKK 2-Console menu opening proble

the console menu does not opens up after pressing that ~ key above tab key while playing Heavy Metal FAKK 2 game which i got recently.

I have used a no cd patch on it to remove cd protection. apart from that i have done nothing else to the game.

Also i have the official demo of this game; while playing which when i press ~ during game play, console menu opens up without any problem.

the problem only occurs in the full version of the game which i have.

so help...

ps: can upload the game main exe file and applied no cd patch if necessary.