ArmA 2 multi isnt working?

[l4d2hunter]

when ever i try to join a server, it loads, and right before it lets me in-game it takes me back to the server screen. Help?

[vohk]

10 to 1, BattlEye didn't install properly. Make sure you're running Steam as admin, right click on A2, 'Reinstall BattlEye'. Give it a second, then try MP again. Don't believe a window pops up.

[Dwarden]

or use these installer manually

http://forums.bistudio.com/showthread.php?t=109915