I got mine this morning at my office, plugged it in at about 10am EST. As of 5pm EST still charging. I have NOT gotten the "charging complete" display.
I called m-audio they said wait until it says "charging complete", and don't unplug it until then.
So.....I had to leave it at work, since I didn't want to wait until it says its done.
Oh well, no playing tonight.