Hi,
I too get a CMD box appear, but it disappears before I can grab a screenshot. After it disappears, one of two things happen. On first run through nothing at all will happen and I'm left staring at my Steam Games. If I re-launch it as CO I get this error :-
No Entry 'bin\config bin/CfgInGameUI/MPTable.shadow'
and then this one :-
Error compiling pixel shader PSSpecularAlpha:0
I have verified the game data and it always says 1 file is missing - it downloads it and then I get stuck in the same cycle - Nothing first time apart from the CMD box, second time error above. Arma 2 runs fine
Any help greatly appreciated