HElp with hammer!

[FragileX]

I have a problem when using hammer. When i start a new map my camera look is all f***ed up. it comes an error like this :
Missing materials editor/wireframe. How could i fix this??

edit : WHen i start it again i get Fatal error cant locate gameinfo.txt something something

 

[NoisyMonk]

make sure that you set your configuration properly.. use this:
http://www.valve-erc.com/srcsdk/Hammer/html/Manually_Config_Hammer.html

if you still get an error, try exiting steam and loading it up again, that fixed a few problems that I had once.

 

[FragileX]

i have followed that tut but it happens over and over again..