Nuendo Hangs on initialization on Macbook Pro

I’ve just installed Nuendo 5.5 did all the updates starting from 5.0, elc authorizations are on a red dongle issued from Steinberg. For some reason on my Macbook Pro running OSX Lion 10.7.4, the program hangs on initializing CORE MIDI, anyone else had this issue?

NEVERMIND! figured out that had some unused vsts in plug in folder that Nuendo didn’t like