Hmm, strange.
I've updated my own server files and noticed that the initial 'srcds' GUI doesn't display some of the old maps.
Mercy Hospital versus only shows the first map on the pull down.
Once I start the server I get a popup error.
"The procedure entry point ThreadShellExecute could not be located in the dynamic link library tier0_s.dll"
Clicking 'OK' continues to start the server and from there the pulldown menu shows all the available maps.
This happened on both a "32bit WinXP Pro" install and a "64bit Vista Ulitimate" install, so beware when restarting the server after the update.
Did a search and found the Steam Thread. (http://forums.steampowered.com/forums/showthread.php?t=845796&highlight=tier0_s.dll+l4d+threadshellexecute)
Does the content d/l automatically? Is it a separate install?
If we're going to roll this out at the LAN we need people to get it all sorted.
Automatic update, not an addon.
Does it still do this if you run another update?
The suggestion is that a second update fixes it, in most cases anyway.
Nope it didn't, but this morning they have released a small update to version 15 (yesterday was from 13 to 14) of the server which contains a new copy of the faulty DLL.
Updating now will download 2 new files and it has fixed the problem.
But certain maps are still not visible from the initial SRCDS front screen and then fully available once the server is running.