Sure, no problems. On your dashboard on the left hand side, if you go to the '> X' menu, then 'Settings', under where it says 'General' there's a bunch of things listed with either a green or grey 'power on' symbol next to them. Just make sure the symbol is green next to 'posts'. It looks like you can also change this setting for varies levels of user as well, so make sure you're doing it for the right user-type.
Hope that helps!