and yeah, akai have really bad support. i've waited for a week for their answer on my case (empty internal drive, erasing each time after restart), just to receive -
"The Vault2 should certainly come pre-loaded on the unit when running in standalone mode. To access these files from the "Main" screen, press: Menu > Browser > My Files > 3 (third folder in top right hand corner of screen) > Expansions > The Vault 2.
Please advise as to whether or not you see this content, if you don’t please send through a picture of what is appearing in this screen."