Map Version is 0, expecting 19 Half-Life 2 Error
 

There's a nasty Half-Life 2 bug out there that is stopping people from playing this seminal shooter. Valve's Erik Johnson sent out this to help those folks:

For people that are running into the bug on startup that looks like:
"Map Version is 0, expecting 19"

Try this to see if it works:

1. Go into your \Steam\SteamApps folder.
2. Rename the file called sourcemodels.gcf to something else.
3. Relaunch the game.

http://ve3d.ign.com/articles/566/566492p1.html

anybody here playin yet?

give me a second, I just got home:)