Same thing just happened to me, no crash log in demigod but windows vista disseminated a bit of info,
Problem signature:
Problem Event Name: APPCRASH
Application Name: Demigod.exe
Application Version: 1.0.0.114
Application Timestamp: 4a08cb60
Fault Module Name: ntdll.dll
Fault Module Version: 6.0.6001.18000
Fault Module Timestamp: 4791a783
Exception Code: c0000005
Exception Offset: 0002324b
OS Version: 6.0.6001.2.1.0.256.1
Locale ID: 1033
Additional Information 1: 0fda
Additional Information 2: a692d449ca604d6384bd06a4d3a1abba
Additional Information 3: 84c8
Additional Information 4: 7dae53173468167c088027f3d2547542
and to Dash, this happened post Directx update.
Same thing for me. Very annoying.
Vista 64 Ultimate, updated.
Nvidia 8800gts 640mb (182.08_geforce_winvista_64bit_international_whql)
Tried updated drivers (185.85_desktop_winvista_64bit_english_whql). Stil happens. But seems less often.
Realtek ALC883 @ VIA VT8237A High Definition Audio Controller PCI <- onboard audio.
MSI MS-7293 Mainboard.
Updated DirectX.
Running all settings on high, no AA, no shadows.