I, as well as a lot of other people have been constantly getting Error #132 making the beta unplayable. I was looking on the Official Beta Tech Support forum today and found this.
(I'm Unable to post links but look at World of Warcraft Forums > Beta Tech Support > Error 132 Sticky, 4th Thread down) That's the official thread.
This is the thread Sticky for Error #132. The 7th post from the bottom a blue stated,
So i'm imagining everyone with a Intel 4 Series Chipset is going to have to run out and either buy a new PC or a new Graphics card.The Intel 4 series chipset has difficulty with World of Warcraft now, so I'm going to assume that it will be unsupported for Mists of Pandaria. We have not officially announced the minimum system and video requirements for Mists of Pandaria.
Anyone else pissed off at the moment?