I found out the problem is some sort of Multiplayer problem I had the same occurance in arma 2 but didnt realize i was seeing the same thing. what ever the problem is it causes your entire keyboard to become unresponsive accept for your enter button and the only way to fix it is switch weapons or salute which i could not do either of while in a hunter and no other options worked(ie exit vehicle)

the engine is just bad at rendering multiple frames, and pip is basically another scene rendered fully and cut projected onto a little texture.

coupled with already terrible net code, mp with pip is a disaster for the most part

This engine reeks of obsolescence. I get the feeling they haven't fixed anything. Their just putting some crutches on their OLD engine, and hoping it will get them through one more play.

That ain't gonna work.

To solve your problem we need dxdiag and files from this folder: "C:\Users\<Name>\AppData\Local\Arma 3 Alpha\"

Can you pack the files in winrar and upload it somewhere please?
When the *.rar will be smaller than 2.097k, you can attach it here. Thank you.

http://feedback.arma3.com/how-to-user.html.html

Closing due to lack of info/response.

If this issue is still reproducable for you, please create a new ticket for it and be sure to include all necessary info/files.