Do i have to remove files to play?

[Emerica (DayZ) 1]

I just downloaded arma 2 combined pack, arma 2 and arrowhead... I use the Dayz Commander and everything is up to date. When i try playing a server, i get this:

Files "C:\Program files\Bohemia Interactive\ArmA2\addons\a10.pbo", "C:\Program files\Bohemia Interactive\ArmA2\addons/ah64.pbo" "C:\Program files\Bohemia Interactive\ArmA2\addons\air.pbo", "C:\Program files\Bohemia Interactive\ArmA2\addons\air2.pbo", "C:\Program files\Bohemia Interactive\ArmA2\addons\air3.pbo", ""C:\Program files\Bohemia Interactive\ArmA2\addons\animals.pbo", ... are not signed by a key accepted by this server. To play on this server, remove listed files or install additional accepted keys.

How do i fix this? Its seems like im getting problem after problem trying to play this game.. Please help!

[Spankinator94 0]

I think you need a legit arma2 combined operations. If you do have that, I don't know whats the problem

[Neymar11 5]

Same exact problem, lol.

[norreka 45]

Reinstall / Reinstall Patch / Buy Arma2 legit / remove and download from steam missing data

[Neymar11 5]

Reinstall / Reinstall Patch / Buy Arma2 legit / remove and download from steam missing data

How is it not legit? I bought ArmA2 the day it came out, and ArmA2 Arrowhead the day it came out, not on steam, but gamefly and box version. I'm sure he has the same problem considering it's not in any "steam" folder...I've already tried reinstalling everything and that didn't workout for me.

[Emerica (DayZ) 1]

I bought a legit combined ops on Amazon.com Im reinstalling both games now. Ill let u know if it works ( which i doubt)

[Emerica (DayZ) 1]

Just reinstalled, says the same thing. Still not working. Will i ever be able to play this effing game :( ?

[Neymar11 5]

and i'll give this a bump....