使命5不能玩多人游戏。求助高人！

517894

一进入游戏，就弹出一个对话框
ARNING: unknown dvar 'bg_shock_volume_local2' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_ambient' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_hurt' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_player1' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_player2' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_music' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_musicnopause' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_mission' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_announcer' in file 'shock/damage_mp.shock'
WARNING: unknown dvar 'bg_shock_volume_shellshock' in file 'shock/damage_mp.shock'
-----------------------------------
PunkBuster Server: pb_sv_GuidRelax = 7 (0 to 7)
Hitch warning: 3493 msec frame time
Hitch warning: 938 msec frame time
Hitch warning: 653 msec frame
怎么解决啊？