How do you make the things you write on others walls visible on your own wall?

No one can see anything unless it is either a status update like a post i made or someone else writes on my wall. But like If I write on someone else's wall no one else can see any of that and I have tried every little setting possible. What could it be?? It didn't used to be that way. It isn't that way ont heir pages I can see what they write to other's?