Arma 2 and Arma 2 OA launch issues

[Wrathstar555]

I'm getting a launch error each time i try to run Arma 2, and Arma 2, OA. on the link in the post below (damn forum isn't letting me link it in this post) the first one is the error on OA, the second is the one on Arma 2. If someone could help me out with what could be wrong, I'm running Vista as my OS, and all my hardware would be able to handle the game. Any ideas what could be wrong?

---------- Post added at 10:54 ---------- Previous post was at 10:53 ----------

http://imgur.com/a/FyhEA - is the link for the error images.

[ProfTournesol]

Check cache integrity.

[Wrathstar555]

-snip-

[ProfTournesol]

Then : (1) Close steam entirely (2) Launch it as administrator (3) Launch games as administrator.

[Wrathstar555]

http://imgur.com/yEZMy comes up with this error whenever I launch either game.

[ProfTournesol]

Look throughout this topic : http://forums.bistudio.com/showthrea...8-for-X8R8G8B8

[[FRL]Myke]

(damn forum isn't letting me link it in this post)

Reading the forum rules you've accepted while registering would have revealed the reason:

Note:
1. New member's posts are auto-moderated, please don't re-post the same message over&over again.
2. New members are required to fill captcha before posting new answers/threads.
3. New members are limited in editing/accessing variety of profile & forum features.
These limitations are removed for regular forum users.

and also these:

§7) Search before posting

If you have a question, please use the forum search function before posting to make sure that it hasn't been answered before. There is a big chance it has, not only does searching help to keep the forum free of multiple threads it will also help you to get an answer much quicker.

§9) Do not cross-post

Do not post duplicate threads in more than one forum simply to get an answer quicker or to draw more attention to your post.

Regarding your problem, if the links already posted by other forum members don't help, i guess it would be helpful to know your system specs.