Errors with DAB

[Aod]

I recently got DAB 3.0 and have had constant problems with it.

Whenever someone joins into my group my bag bar and main menu bar move their positions.
I get errors when I click items in my bag and when I perform certain tasks using DAB.

However the most annoying is that at certain times when I login DAB just ceases to work. None of the bars show (meaning I cant play) and when I use /dab the options are all shown and I cant do anything as I cant see the options.

Is this a common problem? Is there a solution to it?