Game not opening [Windows 7]

Ok so here is the situation:

1. Since the last patch (complex/exvacation) everytime I opened cf it poped up an error message.

2. Since the brand new patch (dsr-4/deagle scope) everytime I open cf xtrap loads normaly, hgw same and then it puts the black window (the one normaly appears just before puting the green thing with zombie, the loggin screen) and then it closes with no reasons.

Here are my specs : Windows 7, geoforce GT240M, intel core 2 duo processor T6600, 4GB DDR3, 500gig hard drive...

So if somebody has a sollution to this problem it would be quite helpfull to cominucate it to me.