Not just USD that is issue it seems, I'm having an issue with two recent separate Yen withdrawal requests. Both 'confirmed' in Gox account history, but about two weeks passed and not hit my bank ( a japanese domestic bank ).
Two weeks is in line with my recent transaction for JPY. It is not in line with standard Japanese domestic fund transfer protocol though. Definitely that is issue of the bank of MtGox. Don't know what is like for their bank's internal transaction, at Japan Net BANK or Mizuho.