As you probably suspected all your minidumps crash at ati3duag.dll. They have bugchecks of 8E, and 50. They all reference game.dll, which is the game you`re trying to play.
0x0000008E: KERNEL_MODE_EXCEPTION_NOT_HANDLED
A kernel mode program generated an exception which the error handler didn’t catch. These are nearly always hardware compatibility issues (which sometimes means a driver issue or a need for a BIOS upgrade).
0x00000050: PAGE_FAULT_IN_NONPAGED_AREA
Requested data was not in memory. An invalid system memory address was referenced. Defective memory (including main memory, L2 RAM cache, video RAM) or incompatible software (including remote control and antivirus software) might cause this Stop message, as may other hardware problems (e.g., incorrect SCSI termination or a flawed PCI card).
I still think this is a problem with the game. Have a look on the game manufacturers website for any fix that may be available.
You might also want to go HERE (
http://www.techspot.com/vb/topic35103.html) and follow the instructions for testing your ram/hdd etc. Just in case.
Regards Howard :)