Can't start game... help!

[Rain^^]

Can't start game! When I click on the start button, a few seconds appears message.
"interrupted work program of ArmA"

This log arma.rpt

================================================== ===================
== g:\steam\steamapps\common\arma gold\arma.exe
================================================== ===================
Exe version: Sun Jun 24 20:09:35 2012
build 1.18.5281
Item STR_03s01 listed twice
Item STR_LIB_HILUX listed twice
Updating base class ->Default, by ca\anims\characters\config.bin/CfgMovesBasic/DefaultDie/
Updating base class ->Default, by ca\anims\characters\config.bin/CfgMovesMaleSdr/States/Crew/
Updating base class ->MGunCore, by ca\weapons\config.bin/cfgWeapons/MGun/
Updating base class RscLoadingText->RscText, by DBE1\Models_DBE1\ui\config.bin/RscDisplayLoading/Variants/LoadingOne/controls/CA_TextLoad/
Updating base class RscLoadingText->RscText, by DBE1\Models_DBE1\ui\config.bin/RscDisplayLoadMission/controls/Title1/
Updating base class RscLoadingText->RscText, by DBE1\Models_DBE1\ui\config.bin/RscDisplayStart/controls/CA_Text/
Updating base class SoldierEB->SoldierE, by ca\hotfix\qg\config.bin/CfgVehicles/SoldierPTeamLeader/
================================================== =====
Date: 06/25/12 Time: 09:18:42
-------------------------------------------------------
Exception code: C0000005 ACCESS_VIOLATION at 737C8D99
Version 1.18.5281
Fault address: 737C8D99 01:00017D99 C:\Windows\system32\MMDevAPI.DLL
file:
world: Intro
Prev. code bytes: EC 14 6A 05 59 8B FC FF 75 E0 8D 75 E8 50 F3 A5
Fault code bytes: FF 52 1C 8D 45 D0 50 8D 45 D8 50 8B CB E8 74 9C

Registers:
EAX:0168EEE8 EBX:001F5678
ECX:00000000 EDX:74FA3424
ESI:2A7BFD70 EDI:2A7BFD30
CS:EIP:0023:737C8D99
SS:ESP:002B:2A7BFD14 EBP:2A7BFD74
DS:002B ES:002B FS:0053 GS:002B
Flags:00010212
================================================== =====
note: Minidump has been generated into the file C:\Users\Rain^^\AppData\Local\ArmA\arma.mdmp

Screenshots error
http://i.imm.io/tUVQ.png
http://i.imm.io/tUW1.png

Win 7 x64
I have last Video Drivers
Video Card: Radeon HD 5850
Processor: AMD Phenom x4 980 BE

[Rain^^]

help pls