As what Detonator wrote there, my viewpoint keep going to the ground level. http://plaguefest.com/index.php?/topic/8851-zombies-screens-stuck-to-ground/page__pid__106381#entry106381 This never has happened to me consistently. This problem occurs each time I re-log into the game. However, this doesn't happen in my regular CS (none zombie mod). Kyle seems to reply this doesn't related to the server, or it just happens.. But, all my equipment, graphic cards and etc. are working fine. Please understand this is happening "consistently for me" and not like before once in a blue moon. Don't understand why my view point keep me at ground level, normal for a few seconds, then back to ground level few seconds. Then kept re-occurring. This problem occurred after I had the update, and kept occurring to me around 3:40am (pacific standard time).