Call me DayZ

it doesnt even let me run arma 2 OA. it says bad serial key or something like that.

Alright, So this is what happends. Please give me any help or info you can. I would love to play dayz again. I have a legit copy of arma 2 OA and arma 2.

Hello, there. My in-game is BIlly the kid, from you know, Expendables 2. (Best movie ever.) I Consistantly snipe elektro/cherno. You do not ever need to gear me up seeing as how I can handle myself with all the gear / clothing needed. And I do have teamspeak. Plus, I can record our raids and post them, :).

Was sniping in elektro, And i kill a guy sprinting in elektro, kill him, then right after i kill him i get exploded. Im pretty sure it was a hacker i killed, because why else whould he JUST kill me in the whole server of 40-50+ players? Here- http://www.youtube.com/watch?v=7R4cXiHuUCU

How do i run it as combined operations?

Well, firstly i had dayz, but gave ti to my friend (it was perfectly fine,) then i bought another one and now its hapepneing on every server. Im using arma 2 OA, and then i downloaded arma 2 free and transferred files over.

Alright, so here it is. Problem #1) When i join a game, it does NOT! tell me where I am. Problem #2) When i go to right click on an item to use it, It appears for HALF A SECOND! and dissapears! so its impossible to bandage myself almost. Problem#3) [bIGGEST PROBLEM!!!] If i leave a game WITHOUT putting my ammo, food, bandages etc in my backpack, IT DISSAPEARS!! I already tried reinstalling arma 2 and dayz!