I have a problem with displaying my health and armor and ammo down at the bottom of the screen, I tried every command that I could find and nothing seems to display my health again. I am on mac os x if that matters. It worked last night fine and i must have hit a button to hide it. How can I fix this?

Go to Options -> Player in the menu and turn the slider "View size" down to 110 or 100

thanks i got it i actually used the + and the - key to get it