TF2 Can't connect to any servers

[Acidogenic]

I have been unable to connect to any tf2 servers the past two days. It started after I had played a few rounds of prophunt 1.7 and now whenever I open TF2, i get this in the console:

maxplayers set to 24
maxplayers set to 24
Error: Material "debug/debugluxels" uses unknown shader "DebugLuxels"
Error: Material "___fillrate_0" uses unknown shader "FillRate"
Error: Material "___debugnormalmap_1" uses unknown shader "DebugNormalMap"
Error: Material "___debugdrawenvmapmask_2" uses unknown shader "DebugDrawEnvmapMask"
Error: Material "___debugdepth_3" uses unknown shader "DebugDepth"
Error: Material "___debugdepth_4" uses unknown shader "DebugDepth"
Steam config directory: /Users/Chris/Library/Application Support/Steam/SteamApps/acidogenic/team fortress 2/platform/config
Unknown command "cl_thirdperson"
Can't use cheat cvar cam_snapto in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_ideallag in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_idealdelta in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_idealyaw in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_idealpitch in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_idealdist in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_idealdistright in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_idealdistup in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar cam_collision in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_maxpitch in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_minpitch in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_maxyaw in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_minyaw in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_maxdistance in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_mindistance in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_orthowidth in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar c_orthoheight in multiplayer, unless the server has sv_cheats set to 1.
Unknown command "sv_backspeed"
Not playing a local game.
Error: Material "___fillrate_0" uses unknown shader "FillRate"
Error: Material "___debugnormalmap_1" uses unknown shader "DebugNormalMap"
Error: Material "___debugdrawenvmapmask_2" uses unknown shader "DebugDrawEnvmapMask"
Error: Material "___debugdepth_3" uses unknown shader "DebugDepth"
Error: Material "___debugdepth_4" uses unknown shader "DebugDepth"
Error: Material "debug/debugluxels" uses unknown shader "DebugLuxels"
Can't use cheat cvar fog_start in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_end in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_color in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_colorskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_color in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_colorskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_color in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_colorskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_startskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_endskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_color in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_colorskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_color in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_colorskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_color in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar fog_colorskybox in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar r_farz in multiplayer, unless the server has sv_cheats set to 1.
Can't use cheat cvar r_farz in multiplayer, unless the server has sv_cheats set to 1.
Network: IP 128.230.xxx.xxx, mode MP, dedicated No, ports 27015 SV / 27005 C

I am running Mac OS 10.5.8 on a late 2007 iMac, 2.16 GHz Intel Core 2 duo, with 4gb of ram. I have not had major problems in the past running tf2, so this may be due to the recent updates or something similar. I have also reinstalled the game (deleted local files, redownloaded), but to no avail.