hey i got da same problem, i did two things,
1. search in windows for filesystem and when {and if} you see "filesystem_steam.dll" or something like dat copy it into your folder where you store the maps you are trying to go on to.
2. make sure that in your options, under game config. that the default pointentity class is is info_player_start and default solentity class is func_wall. I AM STILL HAVING SOME PROBLEMS WITH IT SO DONT GET UR HOPES UP! when i hit f9 and go cs starts up and when it gets to "starting local server" cs crashes [sort of it just dissepears : ] and goes back to hammer. if anyone can help me wit dat please reply to this or send me an email thx a bunch PEACE OUT!!