i need to know why game will not play activation goes thru 4 out of 5 and hangs ...here is game file ...i have the minimal req...graphic card is radeon hd 3870

BackupNameAttachment=" Build(0) 01 May 11 (20 32 25)" -- used by backup system
Log Started at 05/01/11 20:32:25
Running 32 bit version
Executable: C:\Program Files (x86)\Electronic Arts\Crytek\Crysis 2\bin32\Crysis2.exe
FileVersion: 1.4.0.0
ProductVersion: 1.4.0.0
Using STLport C++ Standard Library implementation
Added MOD directory to CryPak
Executable Command Line: "C:\Program Files (x86)\Electronic Arts\Crytek\Crysis 2\bin32\Crysis2.exe"

Total number of logical processors: 2
Number of available logical processors: 2
Total number of system cores: 2
Number of cores available to process: 2

Processor 0:
CPU: Intel Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz
Family: 6, Model: 15, Stepping: 11
FPU: On-Chip
CPU Speed (estimated): 3005.6 MHz
MMX: not present
SSE: present
3DNow!: not present
Serial number not present or disabled

Processor 1:
CPU: Intel Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz
Family: 6, Model: 15, Stepping: 11
FPU: On-Chip
CPU Speed (estimated): 3005.6 MHz
MMX: not present
SSE: present
3DNow!: not present
Serial number not present or disabled

[Warning] Unknown command: sys_game_folder
[Warning] Unknown command: sys_dll_game
[Warning] Unknown command: sys_user_folder
[Warning] Unknown command: r_ShaderCompilerServer
[Warning] Unknown command: log_IncludeTime
[Warning] Unknown command: log_verbosity
[Warning] Unknown command: sys_PakLogInvalidFileAccess
[Warning] Unknown command: sys_float_exceptions
[Error] Error: ConsoleVariableGroup 'sys_spec_physics' key 'p_max_substeps' is not missing in default
Windows 7 64 bit (build 6.1.7600)
System language: English
Windows Directory: "C:\Windows"
Prerequisites...
* Installation of KB940105 hotfix required: no! (either not needed or already installed)
Local time is 20:32:26 05/01/11, system running for 43 minutes
3072MB physical memory installed, 1401MB available, 4095MB virtual memory installed, 54 percent of memory in use
PageFile usage: 105MB, Working Set: 87MB, Peak PageFile usage: 105MB,
Current display mode is 1680x1050x32, (Unknown graphics card)
IBM enhanced (101/102-key) keyboard and 16+ button mouse installed
--------------------------------------------------------------------------------
[Warning] Unknown command: sys_game_folder
[Warning] Unknown command: sys_dll_game
[Warning] Unknown command: sys_user_folder
[Warning] Unknown command: r_ShaderCompilerServer
[Warning] Unknown command: log_IncludeTime
[Warning] Unknown command: log_verbosity
[Warning] Unknown command: sys_PakLogInvalidFileAccess
[Warning] Unknown command: sys_float_exceptions
Stream Engine Initialization
GameName: Crysis 2 (TM)
BuildTime: Apr 14 2011 14:55:40
Font initialization
Physics initialization
Sound initialization
Initializing AudioDevice now!
Initialize FMOD with dynamic memory callbacks
Starting to initialize Windows Audio Session API output!
Drivers found: 2
Available drivers:
1. Speakers (High Definition Audio Device)
2. Digital Audio (S/PDIF) (High Definition Audio Device)
Using speaker mode: FMOD_SPEAKERMODE_STEREO
Initializing FMOD-EX now!
Initialized FMOD-EX
Available record drivers: 0 Microphone (Logitech Mic (Communicate STX)) !
Available record drivers: 1 Microphone (High Definition Audio Device) !
Available record drivers: 2 Line In (High Definition Audio Device) !
Available record drivers: 3 Microphone (High Definition Audio Device) !
Record config is set to autodetect using record driver 0
Using FMOD version: 00043307 and internal 00043307!
Initializing SoundSystem now!
Renderer initialization
used GeomInstancingThreshold is 2

Can you describe the problem more, please....

Sorry, for the double post, but contact EA support... They will help you...

thanks for asking ...i've sent this info to support..no response so far ...installs good but when i go to play sp ..black screeen and pointer then error then closes ..thanks again

Log says that C2 does not recognize your graphic card, you can try to test various drivers for your cards, starting from newest and going down with versions, even 6 moths old drivers can make difference. It can be already known issue where Crysis 2 is not supporting some graphic cards because of some bug.

Well anyway try to check other drivers and see if there will be any difference in game behavior.

EDIT:
Btw.. is this full LOG?

CPU
Minimum: Intel Core 2 Duo 2.0 GHz, AMD Athlon 64 X2 2.0 GHz or better
You Have: Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz
PASS

RAM
Minimum: 2 GB (Vista requires 3 GB)
You Have: 3.0 GB
PASS

OS
Minimum: Windows XP, Vista or Windows 7, with the latest Service Pack
You Have: Microsoft Windows 7 Ultimate Edition Service Pack 1 (build 7601), 64-bit
PASS

Video Card
Minimum: NVIDIA GeForce 8800 GT 512 MB of memory or higher; ATI/AMD Radeon HD 3850 512Mb RAM or higher
You Have: ATI Radeon HD 3870 (Microsoft Corporation WDDM 1.1)
PASS
Features: Minimum attributes of your Video Card
Required You Have
Video RAM 512 MB 1.7 GB
Hardware T&L Yes Yes
Pixel Shader version 3.0 4.1
Vertex Shader version 3.0 4.1

Sound Card
Minimum: Yes
You Have: AMD High Definition Audio Device
PASS

Free Disk Space
Minimum: 9 GB
You Have: 78.2 GB
PASS