Tech problem
 

every time i start up the game i see the intro vid and everything but when it get to the main menu i get a black screen saying "No Signal" and i can hear the game music but i cant see anything. Can some one help me plz ?

Firstly has it always been like that or did it used to work,secondly if its always failed to start are you sure your PC + Graphics cards meet the minimum speck's,& if they do try updating your Graphics card drivers.
Also make sure you have latest version of Directx,should be Directx 9.0c:-)

yea i have the right specs ive played the beta and it worked fine and i have the latest version of my drivers and Dx9

It's look like your game is setting itself up in an unsuported resolution.
You need to start the game in safemode or reinstall it.
Also check if you have the latest driver.
What's your video card model and make?