Arma 3 red screen

Hi,

I saw some people playing Arma 3 alpha with Intel HD Graphics 3000/4000 and I tried with my Intel HD Graphics and I have a red screen. But it's not all red, it's like red letter writing in the screen (like a code). I don't know why it's like that, but I played Operation Arrowhead with my integrated Graphics card and it worked and I hear that Arma 3 is faster for Intel HD Graphics.

Do you know what is the problem?

thx