if you are ingame, open console type /cg_autoaction and press enter, then you see wich setting you currently use.
cg_autoaction <0|1|2|3> – default: "0"
0 - disabled
1 - auto record demo
2 - auto record a screenshot at end of game
3 - auto record demo and screenshot
edit: at this site are much commands explained. http://www.antman.info/wolf/cvar/