Shaders Not Valid (mismatch of exe & Data?)

[Shaders Not Valid (mismatch of exe & Data?)]

Weird...

Since before i haven't done any changes, nothing have been updated, except a few regular win-updates, but today it just worked perfectly, no errors whatsoever

[Shaders Not Valid (mismatch of exe & Data?)]

Hi and welcome to the forum!

No entry cfgWorlds sounds like corrupt data, what version do you own? (Steam? BIS Shop(Sprocket)? or DVD Cover by a Publisher?)

if you have steam, you can try do a filecheck or something like that, it replaces corrupt gamefiles, otherwise you have to reinstall perhaps (if so, try to run the game after every step, for example, install arma 2, test it. Install OA, test it, update patch, test it).

The "Shaders not valid" sounds to me more like your videocard won't be a model to play games with.

did you update it already? With beta patches? If you tried to use the beta patches, better try without the beta too.

What are your system specifications?

CPU, GPU, Memory, Harddisk, OS + Service Pack

I'm using Steam.

I did a filecheck, and it did find one error, but it didn't do any difference. Also tried reinstalling it, but same problem still.

About the shaders, i thought about that too, but since i can run Arma2 just fine, don't they use the same graphics?

Everything is fully upgradet, and i tried both the normal and beta version.

Cpu:

Amd a6, + amd 7670, 8gb ram, hitachi 750gb disc, win8 x64

[Shaders Not Valid (mismatch of exe & Data?)]

So, just bought Arma2 CO.

Tried to run Arma2, and it is just fine

But when i try to run Arma2 OA i first get error during loading: "No entry CfgWorlds", but seems like i can still continue.

When game is about to start, i get the error message: "Shaders Not Valid (mismatch of exe & Data?)" and then the game exits.

What can be done about this?

thanks