WowAce

What is the expected output? What do you see instead?
I am expecting to see my character cast bar, however, i don't see it.

What version of the product are you using?
latest, v4.0.0-beta40 for 5.0.5 Sep 27, 2012

Do you have an error log of what happened?
it does not show any error, or LuaError

Please provide any additional information below.
I had this problem before. But i thought it will be fixed after MoP started.

So, i am using Pitbull for unit frames and Dominos for ction bars since CATA and never had a problem. But after hitting of 5.0, i cannot see my characters cast bar anymore while having Pitbull active.

I had Pitbull and Doinos on. -> No cast bar.
All addons off. -> I see cast bar.
Dominos turned off, Pitbull on. -> No cast bar.
Pitbull off, Dominos on. -> I see cast bar.

SO, i guess some setting of Pitbull is hiding my cast bar, but i cannot find out what. I was trying enabling and disabling action bars of both addon in character login screen, and also in game in interface setting. I have tried all combinations, nothing worked. Only thing what is working is completely disabling Pitbull, but would like to continue in using Pitbull since i like it so much.

PLEASE, help me :)

/pb, Modules, Hide Blizzard frames, uncheck Cast bar