I just bought Gmod 10 from steam and it installed perfectly then when I tried to play it I get this error message:

http://img404.imageshack.us/img404/1304/gmod10lu1.jpg (http://imageshack.us)

does anyone know how to fix it? I get it when I try to load a map

Nevermind, I checked the Gmod site and it said that it was the Steam update error... damn you steam! :D