Yamaha MO6 .... froze at startup menu

anyone had this problem with either the MO6/8 or Motif? I was saving a song to USB and realized that it was actually saving my whole sound library to my USB and wouldnt let me stop it, lol. So I just shut it down. Now when I turn it back on, it just hangs at the Yamaha screen. Anyone else seen this and found a way to fix it?

Aye, just got off the phone with Yamaha. If you have a sandisk flashdrive that came with U3 software installed on it, you have to go to Sandisk website and download the software that uninstalls U3. the keyboard wont save anything and will probably freeze up if you try to save anything without removing U3.