I had to reinstall ubuntu, so what i did to reinstall Avn is just connect via Synaptic, i got the package and everything works fine with one single problem.
The problem is that my bar looks like this, which is really "outrageous"

As you can see is really ugly and too much tall, but if i reduce height, the icons reduce too and they become almost invisible.
Can anybody please helps?
Thanks a lot in advance