Crash on startup for Zombie shooter 2

----< 2011-10-29 10:45:19 >----< C:\program files (x86)\steam\steamapps\common\zombie shooter 2\ZombieShooter2.exe (Aug 13 2009 10:14:30) >----
WindowsUserPath is 'C:\Users\Evan\Documents\Zombie Shooter 2 Saves\'
Memory:: TotalPhys=1073741823 AvailPhys=1073741823 TotalPageFile=2147483647 AvailPageFile=1073741823 TotalVirtual=2147352576 AvailVirtual=2037936128
Save path = 'C:\Users\Evan\Documents\Zombie Shooter 2 Saves\'
AMD Radeon HD 6570
Enum display modes 1280x720 X8R8G8B8 D16
WM_PAINT
Selected display mode 800x600 A8R8G8B8 desktop X8R8G8B8 zbuffer D24S8
!!!ERROR 10:45:20/0!!!GRAPH: 0x8876086C Couldn't create the 3dDevice0
Vid release (vid mem = 0)
d3d release 0


That's the error message.


These are my system specs


Operating System:
Windows 2.6.1.7600
CPU Type:
AMD Phenom(tm) II X4 955 Processor
CPU Speed:
3.22 GHz
System Memory:
7.99 GB
Video Card Model:
AMD Radeon HD 6570
Video Card Memory:
3.97 GB
Video Card Driver:
aticfx32.dll
Desktop Resolution:
1360x768