A number of fixes for Garry's Mod were just released in a patch today. As per the usual Steam update protocol, the update will be automatically applied to your copy of the game.
• Fixed some func_breakable's not creating gibs
• Fixed armor not hiding when dead
• Fixed CS Player model's aim being completely wrong
• Fixed dedicated servers not mounting all available content
• Voice notifications are now drawn via Lua
• Fixed people being telefragged multiple times by the same spawn
• Fixed inconsistency in weapon dropping
• Fixed SMG and AR2 not having viewmodel bobbing
• Fixed view model spazzing when butting up against physics props
• Fixed ScriptEnforcer sometimes not allowing AddCSLua'd files
• Fixed ScriptEnforcer kicking people who don't own Counter-Strike: Source
• Fixed armor not hiding when dead
• Fixed CS Player model's aim being completely wrong
• Fixed dedicated servers not mounting all available content
• Voice notifications are now drawn via Lua
• Fixed people being telefragged multiple times by the same spawn
• Fixed inconsistency in weapon dropping
• Fixed SMG and AR2 not having viewmodel bobbing
• Fixed view model spazzing when butting up against physics props
• Fixed ScriptEnforcer sometimes not allowing AddCSLua'd files
• Fixed ScriptEnforcer kicking people who don't own Counter-Strike: Source