Today, l337Espeon and I decided to switch the server over from Chicken132's bans system to one that we found that will not mess up and crash the server. Unfortunately, to implement the new bans system we also had to upgrade the server binaries. This posed us with a problem for our players. The new server binaries require the user to run Garry's Mod 9 using the Source SDK Base. You can do it a few different ways: 1.) Use the Patcher Application to change the appid of your Gmod9 to the SDK Base. You can get the patcher here: http://eevee.facewan.com/downloads/gmod9-appid.exe Note: For this method, You WILL have to restart Steam for the changes to take effect! OR 2.) Add the server to your steam favorites list (NOT in game, from steam itself) and connect that way. Note: For this method, every time you want to connect to the server, you have to join though the steam favorite servers menu to launch the game. OR 3.) Change the appid in your gameinfo.txt file from 220 to 215 by going to your gmod9 folder (usually C:\Program Files\Steam\steamapps\SourceMods\gmod9 or C:\Program Files\Valve\Steam\steamapps\SourceMods\gmod9.) and opening the file gameinfo.txt. Find where it says "SteamAppId 220" and change 220 to 215, so it should now read "SteamAppId 215". Save the file and restart Steam. Note: For this method, You WILL have to restart Steam for the changes to take effect!