A couple of noob questions

[Teneran]

Hello, I just started a necromancer and i'm almost to level 4; a couple of quick questions i cannot figure out.

I finally got money for disease cloud but it doesn't seem to be applying the 1 dmg per tick, at least it does not show up in the chat window where I have spell info, or the main chat. I'm sure it's working but why am I not seeing the dot damage per tick?

My UI (I believe I have the default) does not show my mana quantity. It h=show HP, AC and ATK. Obviously I would like mana or Ac or ATK. Is there some way to toggle this?

Sorry to bother but any help would be appreciated.