I mined from the official pool last night, it did take a good hour or 2 before I started to get coins in wallet.
Yes, it also took about two hours before I begun getting anything from suprnova.
The point is, many of us used 12+ hours and lots of power at minerpools (and apparently some other pools as well) without ever getting a single fragment of a ROOT.
Whatever it is, something definitely is/was wrong with some of the pools.