I Have downloaded Combinded operations from Steam. I tried several times to launch it from there and all attemps failed. An error kept showing saying "The procedure entry point D3DXMatrixMultiply could not be located in the dynamic link library d3dx9_41.dll." I tried several times restarting my computer and running 'Steam' as administrator. Then I Used the 'Six Launcher' to try to launch arma 2 oa and it came with the same error.I even deleted my anti-virus programm (Norton Anti-Virus). Then, I turned here. Im clueless as to what this means. If I did not mention this accures with ArmA 2 and ArmA 2: Operation Arrowhead
Computer Info:
Windows 7.
AMD FX-4100 Quad-core processer
