Dell Alienware M15x — Enter key not functioning

Game: Need for Speed Shift - (an electronic arts game application).

Problem: Enter Key not working during game

Description: After installing this game on my Alienware m15x, i doubleclicked the shift.exe (application) and then the game preview video runs and after the language selection
screen appears where i need to select the regional language.Here i am able to cycle to different languages by hitting LEFT and RIGHT arrow keys and finally when i hit ENTER button in my laptop keyboard to enter a particular language it is not responding.

Steps taken to solve

1. I have tried hitting all buttons on my laptop but the game will continue only when ENTER button is clicked which i was failure for me even though after repeated tries.
2. I switched on the Numpad (fn+numlck) and restarted the game and again there was no luck and the enter key was still not functional.
3. Called up Dell customer care and they made me hold the call for 1 hour and i spoke to different technicians but no one were able to figure out the solutions.
The technicians (deepak and rajan) to whom i lastly spoke with told me that this is not an issue with Alienware and only Game vendor could solve this on his end. But my question is when other people are able to play the same game on m17x and Alienware desktops then why this is happening only m15x laptops. you can see lots of need for speed game videos played on m15x on youtube.com. This issue happens on all electronic arts Games.

Please see this forum link where people have discussed on the same issue and no one yet has got an reply from dell or Alienware.
http://forum.notebookreview.com/showthread.php?t=436150.

Dell customer care has not given good service yet where as the game is played perfectly in other alienware laptop models.

Regards
Matheen