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I don't have one, so no. Thank you for your help
Well, can you borrow one from a friend or relative? It would only take a few minutes to test out.
 
Well, I was expecting that to help. I'm sorry you are having such a bad problem on this machine, it is weird.

Describe the actual problem fully please. Do you even see the launcher?

Do you have the game from Steam or GamersGate? Either way, please navigate to the game directory and run the game executable ck2.exe (not the launcher ck2game.exe) directly, does it get any further? Does it populate the log files?

One thing I don't think we've tried is settings.txt , manually delete that and run the game up again.
 
It's in the CK2 directory under your MyDocuments folder.
 
Well I have to admit I'm running out of ideas. There is clearly something in this machine's hardware or windows installation that's causing this, but I cannot see what. Do you have other games in Steam? If so, do they work OK on this machine?

What I suggest is this: uninstall all games in Steam, and then uninstall the Steam client itself. Manually delete the entire Steam directory it leaves behind. Go to the Windows Update site and apply all updates it recommends.

Now reinstall the Steam client, and this time install it somewhere outside the system path (say under c:\steam\ or c:\games\steam\ ) . Then install CK2 and try running it then.
 
I have same thing. I launch game from Steam, get launcher window, click play, get black screen and pc freezes. Have to switch power off.
Like previous poster, I don't have settings.txt and from log-files only system.log has something on it.

I tried to force it to 640x480 mode, administrator mode, XP-compablitymode. Nothing helps. I have lots of games on Steam and Origin and etc, they all work fine.

Below is Dxdiag and system.log

Dxdiag

------------------
System Information
------------------
Time of this report: 5/27/2012, 13:14:12
Machine name: NILJA-PC
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7600) (7600.win7_rtm.090713-1255)
Language: Finnish (Regional Setting: Finnish)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-790XTA-UD4
BIOS: Award Modular BIOS v6.00PG
Processor: AMD Phenom(tm) II X4 965 Processor (4 CPUs), ~3.4GHz
Memory: 12288MB RAM
Available OS Memory: 12286MB RAM
Page File: 2359MB used, 22212MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 32bit Unicode

------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.

--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

---------------
Display Devices
---------------
Card name: AMD Radeon HD 6800 Series
Manufacturer: Advanced Micro Devices, Inc.
Chip type: ATI display adapter (0x6738)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_6738&SUBSYS_00D01002&REV_00
Display Memory: 2795 MB
Dedicated Memory: 1004 MB
Shared Memory: 1791 MB
Current Mode: 1920 x 1200 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: BenQ G2400W
Monitor Id: BNQ780A
Native Mode: 1920 x 1200(p) (59.950Hz)
Output Type: DVI
Driver Name: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver File Version: 8.17.0010.1124 (English)
Driver Version: 8.961.0.0
DDI Version: 10.1
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 4/6/2012 05:20:04, 1067520 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71EE2-2478-11CF-D677-DA20BEC2C535}
Vendor ID: 0x1002
Device ID: 0x6738
SubSys ID: 0x00D01002
Revision ID: 0x0000
Driver Strong Name: oem43.inf:ATI.Mfg.NTamd64.6.1:ati2mtag_NI:8.961.0.0:pci\ven_1002&dev_6738
Rank Of Driver: 00E62001
Video Accel: ModeMPEG2_A ModeMPEG2_C
Deinterlace Caps: {6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{3C5323C1-6FB7-44F5-9081-056BF2EE449D}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{552C0DAD-CCBC-420B-83C8-74943CF9F1A6}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC1,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC2,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC3,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC4,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(S340,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(S342,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
D3D9 Overlay: Not Supported
DXVA-HD: Not Supported
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Enabled

-------------
Sound Devices
-------------
Description: Kuulokkeet (ASUS Xonar DG Audio Device)
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: PCI\VEN_13F6&DEV_8788&SUBSYS_84671043&REV_00
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: cmudaxp.sys
Driver Version: 5.12.0001.0008 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 3/10/2011 15:44:16, 2725376 bytes
Other Files:
Driver Provider: ASUSTeK
HW Accel Level: Basic
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: Yes
EAX(tm) 2.0 Listen/Src: Yes, Yes
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

Description: Digital Output (ASUS Xonar DG Audio Device)
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: PCI\VEN_13F6&DEV_8788&SUBSYS_84671043&REV_00
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: cmudaxp.sys
Driver Version: 5.12.0001.0008 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 3/10/2011 15:44:16, 2725376 bytes
Other Files:
Driver Provider: ASUSTeK
HW Accel Level: Basic
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

System.log

[systemsettings.cpp:181]: System memory: 0MB
[systemsettings.cpp:183]: CPU speed: 3415MHz
[systemsettings.cpp:190]: Number of processors: 4
[systemsettings.cpp:201]: CPU type: x86
[systemsettings.cpp:233]: OS: Unknown Build: 7600
[gfx_settings.cpp:51]: Graphic Adapters:
[gfx_settings.cpp:56]: 0: AMD Radeon HD 6800 Series
[gfx_settings.cpp:73]: Checking for multi-sampling support:
[gfx_settings.cpp:84]: 2 samples supported.
[gfx_settings.cpp:84]: 4 samples supported.
[gfx_settings.cpp:84]: 8 samples supported.
[gfx_settings.cpp:99]: Using Adapter [0]:
[gfx_settings.cpp:105]: Succeeded to create a device [D3DCREATE_HARDWARE_VERTEXPROCESSING].
[gfx_settings.cpp:147]: Graphics device: AMD Radeon HD 6800 Series
[gfx_settings.cpp:148]: Graphics driver: aticfx32.dll
[gfx_settings.cpp:153]: Driver version: 1124
[gfx_settings.cpp:170]:


Dumping all gfx info:
DeviceIdentifier: {D7B71EE2-2478-11CF-D677-DA20BEC2C535}
VendorId: 4098
DeviceId: 26424
SubSysId: 13635586
Revision: 0
DriverVersion.HighPart: 524305
DriverVersion.LowPart: 656484


[gfx_settings.cpp:220]: Instancing supported.
[gfx_settings.cpp:238]: Video memory amount: 1342MB
[gfx_settings.cpp:241]: Support for T&L found.
[gfx_settings.cpp:244]: MaxSimultaneousTextures: 8
[gfx_settings.cpp:245]: MaxVertexBlendMatrices: 4
[gfx_settings.cpp:246]: MaxVertexBlendMatrixIndex: 8
[gfx_settings.cpp:248]: MaxSimultaneousTextures: 8
[gfx_settings.cpp:249]: MaxTextureBlendStages: 8
[gfx_settings.cpp:250]: Support for Anisotropic filtering found.
[gfx_settings.cpp:253]: Max Anisotropic filtering: 16
[gfx_settings.cpp:254]: Anisotropic filtering set to: 0
[gfx_settings.cpp:258]: Vertex Shader version: 3.0
[gfx_settings.cpp:263]: Pixel Shader version: 3.0
[main.cpp:442]: CK2 Version May 16 2012 : 13:45:47
[internationalizedtext.cpp:1244]: Create table
[internationalizedtext.cpp:1246]: Create text database
[graphicssettings.cpp:624]: Not using multisampling.
[graphics.cpp:163]: Creating device with: HARDWARE_VERTEXPROCESSING
Fullscreen=yes
RefreshRate=60
Resolution=1920x1200
 
nilja: sorry, I missed your post - it's always better to start your own thread, BTW. But first I guess you should try what worked for the OP.
It WORKED. THAT YOU VARY MUCH FOR ALL YOUR HELP. I LOVE YOU...
Reinstalling the whole of Steam worked? Wow, that's brilliant, good to hear! Whew, I didn't really have anything else to suggest.