I got the same problem and I'm going crazy!!
I installed non steam 1.6 and it works just fine. And then I was personalizing it and at the display settings I go 1280 to 1900, when I hit ok button it goes and never came back.
I tried everything, instaliing again, uninstallng again again again. Tried another setups.. ( changing the dlls and everything )
The game just wont start.. It just dont.
and at the library / preferences , there is no such thing as counter strike or it's pref files.
I dont know what to do.
I'm using 2.7 i7, 16gb, os X 10.9.5
How can I undo everything I done and get back to 1280 and my happy days?
Thanks.