Originally when I installed it I was able to play it fine, then I stopped playing for a while and I know I had updated my graphics driver somewhere inbetween not playing Demigod and then starting to play Demigod again. The graphics card thing is the only thing I can think of that could be a problem.

Computer spec:

Operating System: Windows Vista™ Ultimate (6.0, Build 6001) Service Pack 1 (6001.vistasp1_gdr.080425-1930)
           Language: English (Regional Setting: English)
System Manufacturer: System Manufacter
       System Model: System Product Name
               BIOS: Phoenix - AwardBIOS v6.00PG
          Processor: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz (2 CPUs), ~2.4GHz
             Memory: 2046MB RAM
          Page File: 1631MB used, 2705MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 10

Card name: NVIDIA GeForce 8600 GTS
     Manufacturer: NVIDIA
        Chip type: GeForce 8600 GTS
         DAC type: Integrated RAMDAC
       Device Key: Enum\PCI\VEN_10DE&DEV_0400&SUBSYS_043810DE&REV_A1
   Display Memory: 1008 MB
 Dedicated Memory: 241 MB
    Shared Memory: 767 MB
     Current Mode: 1920 x 1200 (32 bit) (60Hz)
          Monitor: Generic PnP Monitor
      Driver Name: nvd3dum,nvd3dumx.dll,nvwgf2um,nvwgf2umx.dll
   Driver Version: 7.15.0011.6371 (English)
      DDI Version: 10
Driver Attributes: Final Retail
 Driver Date/Size: 9/17/2007 09:07:00, 4988928 bytes
      WHQL Logo'd: Yes

Error Log:

C:\work\forge\beta\code\src\core\SndMain.cpp:line 171: system->getDriverCaps(0, &caps, 0, 0, &speakermode) failed: An invalid parameter was passed to this function.

Program : C:\Program Files (x86)\Stardock Games\Demigod\bin\Demigod.exe
Cmd line arguments :

Callstack:
    unavailable.

Last 100 lines of log...

info: checking C:\Users\Will Kuo\Documents\/My Games/Gas Powered Games/Forge/mods
info: checking C:\Users\Will Kuo\Documents\/My Games/Gas Powered Games/Forge/maps
info: checking C:\Users\Will Kuo\AppData\Local\/Gas Powered Games/Forge/mods
info: checking C:\Users\Will Kuo\AppData\Local\/Gas Powered Games/Forge/maps
info: DISK: AddSearchPath: 'c:\program files (x86)\stardock games\demigod', mounted as '/'
info: Watching directory "c:\program files (x86)\stardock games\demigod"
warning: Search path element "C:\Program Files (x86)\Stardock Games\Demigod\mohodata" does not match any files