kane & lynch 2 stop responding (buffering 27%)

while buffering to load the next mission , i think after the fight in hsing warehouse Kane and lynch decides to lay-low , after this cut screen , the game buffer until it reach 27 % and thin it stop responding and give this :
Problem signature:
Problem Event Name: APPCRASH
Application Name: kl2.exe
Application Version: 1.0.0.1
Application Timestamp: 4c372bb3
Fault Module Name: MSVCR90.dll
Fault Module Version: 9.0.30729.4926
Fault Module Timestamp: 4a1743c1
Exception Code: c0000005
Exception Offset: 0003ab1a
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 3073
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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i have :
windows 7 32x
HD4770 up to the latest driver
AMD athlon 2 X4 630
4 giga ram

you are saying that updating to the latest driver is not helping ?
if so , what is the best driver for my 4770?
i reinstalled the vga driver and directx 10 , and the hole windows , the problem is the same , and at the same 27%