kb.exe has stopped working on startup

[Setanta]

Hi there,

I just bought the game through Direct2Drive. Having installed it and run it, the game loads to a black window and then I get a windows message "kb.exe has stopped working". I can run other games such as Borderlands, Dragon Age, Arkham Asylum without and problems - I can even run the original King's Bounty (which I purchased with Armored Princess) without an issue. I've gone through the support page and tried all the workarounds/suggestions to no avail. I've tried running as administrator, DEP is off etc.

I've included a truncated copy of dxdiag below:

Thank you

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System Information
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Time of this report: 12/12/2009, 14:56:01
Machine name: xxxx
Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.090803-2339)
Language: English (Regional Setting: English)
System Manufacturer: Acer
System Model: Aspire 5738
BIOS: Ver 1.00PARTTBL
Processor: Intel(R) Core(TM)2 Duo CPU P7450 @ 2.13GHz (2 CPUs), ~2.1GHz
Memory: 3066MB RAM
Page File: 1088MB used, 14382MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
DxDiag Version: 7.00.6002.18107 32bit Unicode

---------------
Display Devices
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Card name: NVIDIA GeForce G 105M
Manufacturer: NVIDIA
Chip type: GeForce G 105M
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_06EC&SUBSYS_02051025&REV_A1
Display Memory: 1776 MB
Dedicated Memory: 499 MB
Shared Memory: 1277 MB
Current Mode: 1366 x 768 (32 bit) (60Hz)
Monitor: Generic PnP Monitor
Driver Name: nvd3dum.dll,nvwgf2um.dll
Driver Version: 7.15.0011.7930 (English)
DDI Version: 10
BGRA Supported: Yes
Driver Attributes: Final Retail
Driver Date/Size: 12/17/2008 10:03:00, 5971968 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-45AC-11CF-6F6D-0E2201C2CA35}
Vendor ID: 0x10DE
Device ID: 0x06EC
SubSys ID: 0x02051025
Revision ID: 0x00A1
Revision ID: 0x00A1
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C