i got arma 2 : arrowhead crash to desktop

[lucase]

hello everybody there,i got some problem when i playing the arma 2 :arrowhead
the crash is note like this

roblem Event Name: APPCRASH
Application Name: arma2OA.exe
Application Version: 1.51.71.83
Application Timestamp: 562b029a
Fault Module Name: arma2OA.exe
Fault Module Version: 1.51.71.83
Fault Module Timestamp: 562b029a
Exception Code: c0000005
Exception Offset: 018ec594
OS Version: 6.1.7600.2.1.0.256.4
Locale ID: 1057
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

and my computer spesification are
core 2 duo 1,8 GHZ
RAM DDR 2 2 GB vgen
ATI Radeon 5750 VGA sapphire

i need your help everybody,this trobleshooting make me headache

[seelix]

http://forums.bistudio.com/showthread.php?t=102991