Unable to load surfaceprop file

I keep crashing on start. It didn’t do this until 5 minutes ago. Every time I launch, I get this error:

http://www.majhost.com/gallery/HDLBAR/Random/iMages/help.png

I would very much like to play the game now, so if someone could just help me out…

There’s a similar issue with someone’s L4D2 that I’m currently trying to sort out in the L4D forum. We seem to have arrived at the conclusion that an addon is causing it. Post a screenshot of your addons list, and another of the contents of the file that won’t load.

Ok, I got it fixed. It turned out to be SVN updating the my PHX file over and over, nonstop.

Ah. That’s coo’ then.