Strange MIDI-Keyboard problem i have

[ColdnColder]

Hello, i'd thought i could some help here, so here i am

I have Ableton Suita 8.1.4 and my Keyboard i connected via MIDI to a M-Audio Midi2Usb controller.
So my problem:
If I play more than 1 or 2 notes on my keyboard in ableton at the same time i have no problems, but if I tap on 3 or more at the same time, the impuls is there, but the notes aren't keep listenable. So I get everytime I do this a little noise.
At 3 notes there is some strange thing else. After pushed first time I get these nose, but if I do it again, the notes are normal kept played like you normally want..
This thing appearances everytime I play different notes again.

Okay fact: My Keyboard and Controller work very well, I tested them with Fl Studio and it worked awesome..
Any adwises or solutions ?
Would be really nice if you can help me, it was the reason I registered for the forum here. :>
Eh and yeah, i'm german, so sorry 'bout my language!

[Ableton_David]

Hi, please try updating to Ableton Suite 8.2.1, the latest version. It's a free update, and you can get it here: http://www.ableton.com/latest-versions.

Once you've updated, if the problem persists, please contact tech support: http://www.ableton.com/support