When running ArmA 2 I get this message:
"The version of this file is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86(32-bit) or x64(64-bit) version of the program, and then contact the software publisher."
1 errors during installation related to unable to install DirectX. I account that to already having that version installed on the system.
Purchased the game from Direct2Drive.
CPU: i7 920 @ 2.67GHz
Ram: 6 gb
OS: Vista Ultimate SP2 (64-bit) (also same issue under windows 7 (64-bit)
Video ATI 4670 chip set w 512mb ram.
Thank you in advance!